Home / 8,425.92-12,635-2,581.28

Finding the Fourth Proportional to 8,425.92, 12,635 and 2,581.28

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Solution

The fourth proportional to 8,425.92, 12,635 and 2,581.28 is: 3,870.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.92 : 12,635 = 2,581.28 : x
  2. Step 2: Convert to fraction form
    8,425.92/12,635 = 2,581.28/x
  3. Step 3: Cross multiply
    8,425.92x = 12,635 × 2,581.28
  4. Step 4: Simplify right side
    8,425.92x = 32,614,472.80
  5. Step 5: Solve for x
    x = 32,614,472.80/8,425.92
  6. Step 6: Final answer
    x = 3,870.73

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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.