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If 8, 18, 18 and x in proportion then find the value of x.

  • a)
    40.5

  • b)
    18

  • c)
    405

  • d)
    81

Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
If 8, 18, 18 and x in proportion then find the value of x.a)40.5b)18c)...
8/18 :: 18/x
By cross multiply, we get
8x = 324
x = 40.5
Free Test
Community Answer
If 8, 18, 18 and x in proportion then find the value of x.a)40.5b)18c)...
To find the value of x in the given proportion, we can use the concept of cross-multiplication.

Cross-multiplication is a method used to solve proportions. It involves multiplying the numerator of one fraction by the denominator of the other fraction and equating the two products.

Given: 8 : 18 :: 18 : x

We can rewrite the proportion as:

8/18 = 18/x

Cross-multiplication:

To solve the proportion, we can cross-multiply:

8 * x = 18 * 18

Simplifying the equation:

8x = 324

Dividing both sides by 8:

x = 324/8

x = 40.5

Therefore, the value of x is 40.5.

So the correct option is (a) 40.5.
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