Home / 10,321.28-15,488.62-3,746.90

Finding the Fourth Proportional to 10,321.28, 15,488.62 and 3,746.90

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Solution

The fourth proportional to 10,321.28, 15,488.62 and 3,746.90 is: 5,622.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.28 : 15,488.62 = 3,746.90 : x
  2. Step 2: Convert to fraction form
    10,321.28/15,488.62 = 3,746.90/x
  3. Step 3: Cross multiply
    10,321.28x = 15,488.62 × 3,746.90
  4. Step 4: Simplify right side
    10,321.28x = 58,034,310.28
  5. Step 5: Solve for x
    x = 58,034,310.28/10,321.28
  6. Step 6: Final answer
    x = 5,622.78

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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.