Home / 10,642.92-15,964.38-3,715.80

Finding the Fourth Proportional to 10,642.92, 15,964.38 and 3,715.80

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Solution

The fourth proportional to 10,642.92, 15,964.38 and 3,715.80 is: 5,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.92 : 15,964.38 = 3,715.80 : x
  2. Step 2: Convert to fraction form
    10,642.92/15,964.38 = 3,715.80/x
  3. Step 3: Cross multiply
    10,642.92x = 15,964.38 × 3,715.80
  4. Step 4: Simplify right side
    10,642.92x = 59,320,443.20
  5. Step 5: Solve for x
    x = 59,320,443.20/10,642.92
  6. Step 6: Final answer
    x = 5,573.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.