Home / 15,640.24-23,463.80-5,251.76

Finding the Fourth Proportional to 15,640.24, 23,463.80 and 5,251.76

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Solution

The fourth proportional to 15,640.24, 23,463.80 and 5,251.76 is: 7,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.24 : 23,463.80 = 5,251.76 : x
  2. Step 2: Convert to fraction form
    15,640.24/23,463.80 = 5,251.76/x
  3. Step 3: Cross multiply
    15,640.24x = 23,463.80 × 5,251.76
  4. Step 4: Simplify right side
    15,640.24x = 123,226,246.29
  5. Step 5: Solve for x
    x = 123,226,246.29/15,640.24
  6. Step 6: Final answer
    x = 7,878.80

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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.