Question

What is the solution to the proportion?
--> 12/15 = 8/x

Answer 1

Multiply 15 by 8 and divide by 12

Answer 2

x=10

Answer 3

Do you know about cross-multiplication?

\[\frac{a}{b} = \frac{c}{d}\]\[a*d = b*c\]

Answer 4

You know all but \(d\), so \[a*d = b*c\]\[\frac{b*c}{a} = d\]