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Finding the Fourth Proportional to 15,281.92, 22,929.40 and 6,399.32

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Solution

The fourth proportional to 15,281.92, 22,929.40 and 6,399.32 is: 9,601.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,281.92 : 22,929.40 = 6,399.32 : x
  2. Step 2: Convert to fraction form
    15,281.92/22,929.40 = 6,399.32/x
  3. Step 3: Cross multiply
    15,281.92x = 22,929.40 × 6,399.32
  4. Step 4: Simplify right side
    15,281.92x = 146,732,568.01
  5. Step 5: Solve for x
    x = 146,732,568.01/15,281.92
  6. Step 6: Final answer
    x = 9,601.71

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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.