a triangle has sides of 3, 6, and 8. In a similar triangle the shortest side is 9 and the longest side is x. a) write a proportion that models the situation. b) solve the proportion for x.

need a little guidance on this one please...

Question

a triangle has sides of 3, 6, and 8. In a similar triangle the shortest side is 9 and the longest side is x. a) write a proportion that models the situation. b) solve the proportion for x. 

need a little guidance on this one please...

inkyvoyd · Answer

3:6:8
9:a:x

inkyvoyd · Answer

Multiply the known ratio by three to get the side length values for the unknown triangle.

inkyvoyd · Answer

If you're having trouble grasping what I'm saying feel free to ask questions for clarification

anonymous · Answer

no i'm trying to work it out first on paper, then i'll ask for a check :) lol

anonymous · Answer

so far I have 
k=-13/2  

working on the rest... lol for y=

inkyvoyd · Answer

otay - tell me your final answer so I can check it :)

anonymous · Answer

which I got -39

anonymous · Answer

so k= -13/2  and y=-39    .... hopefully LOL

anonymous · Answer

@inkyvoyd

inkyvoyd · Answer

well, that side length you should be getting is 27 - it's a scale of 3...

anonymous · Answer

oh...sorry...I was posting the answer to my next question... my bad.

anonymous · Answer

got ahead of myself lol

inkyvoyd · Answer

ohh lol

anonymous · Answer

ok..... on this one I got 3/8=9x     and then came up with the longest side being 24.   @inkyvoyd   yes? LOL

inkyvoyd · Answer

uhh, you should be getting 27 I think :S

anonymous · Answer

i submitted my answer I got it right. lol thanks for the help :)

inkyvoyd · Answer

lol, then I epically fail. My bad.

anonymous · Answer

it's ok :)