How do you solve the proportion 5/12=x/36512=x36?

2 Answers
smendyka
Feb 12, 2017

See the entire solution process below:

Explanation:

Multiply each side of the equation by color(red)(36)36 to solve for xx:

color(red)(36) xx 5/12 = color(red)(36) xx x/3636×512=36×x36

(3 xx 12) xx 5/12 = cancel(color(red)(36)) xx x/color(red)(cancel(color(black)(36)))

(3 xx color(red)(cancel(color(black)(12)))) xx 5/color(red)(cancel(color(black)(12))) = x

15 = x

x = 15

and

5/12 = 15/36

Jim G.
Feb 12, 2017

x=15

Explanation:

Multiply the numerator/denominator of the fraction on the left side by 3. This creates 2 equivalent fractions.

rArr5/12xx3/3=15/36

"now we have "15/36=x/36

rArrx=15

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