Question

Find the missing number in the box in the following proportion: __ : 5 :: 12 : 60​

Answer 1

Step-by-step explanation:

{The product of extremes= Product of instremes

[Extremes-The outer numbers in the proportion]

[Instreams-The inner numbers in the proportion]}

5×12 = x×60

60 = 60x

60/60 = x

1 = x

Answer 2

Answer:

∴ The missing term in the proportion is $1$.

Step-by-step explanation:

• In context with question asked,
• We have to find the missing term in the given proportion.
• Let, $x$ be the missing term.
• The given proportion becomes, $x : 5::12:60$
• We can rewrite the proportion as,

     $\frac{x}{5} =\frac{12}{60}$

• By cross multiplication, we get

         $60x=12\times 5$

      ∴ $60x=60$

         ∴ $x=\frac{60}{60}$      

• Transposing $60$ to other side, we get

          ∴ $x=1$

• ∴ The missing term in the proportion is $1$.