Question

the two rectangles are similar select a proportion that would lead to the correct value of x

Answer 1

Given that the rectangles are similar, we know that:

$\frac{4}{8}=\frac{12}{x},$

which is equivalent to:

$\frac{x}{12}=\frac{8}{4}.$

Answer:

$\frac{x}{12}=\frac{8}{4}.$