Question

determine a medida de x nas proporções abaixo
$\frac{4}{3} = \frac{x}{9}$
$\frac{8}{x} = \frac{6}{12}$
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Answer 1

$\frac{4}{3}=\frac{x}{9}$

$\frac{12}{9}=\frac{x}{9}$

$12=x$

$x=12$

$\frac{8}{x}=\frac{6}{12}$

$\frac{24}{3x}=\frac{24}{48}$

$3x=48$

$x=\frac{48}{3}$

$x=16$