Question

Determine o valor de x nas proporção 1/3=x/12

Answer 1

Resposta:

Olá bom dia!

A proporção

$\frac{a}{b} = \frac{c}{d}$

Equivale a:

a*d = b*c

Logo:

$\frac{1}{3}=\frac{x}{12}$

3x = 12*1

3x = 12

x = $\frac{12}{3}$

x = 4

Answer 2

$\Large\displaystyle\text{ \begin{gathered}\tt\frac{1}{3}=\frac{x}{12}\\\\\tt3x=12\cdot1\\\\\tt3x=12\\\\\tt x=\frac{12}{3}\\\\\boxed{\boxed{\tt x=4}}\end{gathered} }$