Question

What is the solution to the proportion?

9/x = 4/12

Answer 1

x = 27, cross multiply. 9 *12 and 4*x. 108=4x, divide 4 on both sides and you get x=27. 9/27 = 1/3 and 4/12 = 1/3

Answer 2

A.
64%


B.
36%


C.
26%


D.
74%

Answer 3

I don't understand this one.....

Answer 4

A.
3


B.
27


C.
13


D.
17

Answer 5

Never "cross multiply". It is utterly silly and useless. Simply solve for the variable.

9/x = 4/12

Simplfy where possible

9/x = 1/3

x cannot be zero, so multiply by that.

9 = x/3

Multiply by 3.

x = 27

Done!