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Ratio & Proportion · Question 27 of 67

Question 27

EasyOriginal question

What is the third proportional to 4 and 10?

Options for question 27

Show the answer and explanation
CorrectNot quiteAnswer C

Correct answer: C

Explanation

  1. The third proportional x satisfies 4:10=10:x4 : 10 = 10 : x.

  2. x=10×104=25x = \frac{10 \times 10}{4} = 25.

Worth noting

40 is simply 4×104 \times 10; 16 comes from adding the difference 6 to 10.

Concept
Third proportional
Typical time
35 s
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The rule this testsProportion
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