Question

Find the value of x in this proportion.

9:x = x:4

Answer 1

change to fractions
\[\frac 9x = \frac x4\]
cross multiply

Answer 2

x=36?

Answer 3

no...x^2 = 36

Answer 4

it would be x^2 =36
multiply by 4x to both sides

Answer 5

x times x is x^2 remember?

Answer 6

now solve for x by taking the square root \[x^2 = 36\]

Answer 7

x=6

Answer 8

correct

Answer 9

or could be -6 too

Answer 10

\[\sqrt{36} = \pm 6\]

Answer 11

oohhh i get it now thank u

Answer 12

welcome ^_^