Home / 15,337.35-21,158.62-9,668.16

Finding the Fourth Proportional to 15,337.35, 21,158.62 and 9,668.16

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Solution

The fourth proportional to 15,337.35, 21,158.62 and 9,668.16 is: 13,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,337.35 : 21,158.62 = 9,668.16 : x
  2. Step 2: Convert to fraction form
    15,337.35/21,158.62 = 9,668.16/x
  3. Step 3: Cross multiply
    15,337.35x = 21,158.62 × 9,668.16
  4. Step 4: Simplify right side
    15,337.35x = 204,564,899.37
  5. Step 5: Solve for x
    x = 204,564,899.37/15,337.35
  6. Step 6: Final answer
    x = 13,337.70

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Find fourth proportional to 7,668.68, 10,579.31 and 4,834.08
Half scale
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Double scale
Find fourth proportional to 15,338.35, 21,160 and 9,669.16
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.