Home / 10,217.38-15,327.05-3,977.90

Finding the Fourth Proportional to 10,217.38, 15,327.05 and 3,977.90

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Solution

The fourth proportional to 10,217.38, 15,327.05 and 3,977.90 is: 5,967.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.38 : 15,327.05 = 3,977.90 : x
  2. Step 2: Convert to fraction form
    10,217.38/15,327.05 = 3,977.90/x
  3. Step 3: Cross multiply
    10,217.38x = 15,327.05 × 3,977.90
  4. Step 4: Simplify right side
    10,217.38x = 60,969,472.20
  5. Step 5: Solve for x
    x = 60,969,472.20/10,217.38
  6. Step 6: Final answer
    x = 5,967.23

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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.