Home / 10,234.20-15,335.10-8,581.80

Finding the Fourth Proportional to 10,234.20, 15,335.10 and 8,581.80

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Solution

The fourth proportional to 10,234.20, 15,335.10 and 8,581.80 is: 12,859.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,234.20 : 15,335.10 = 8,581.80 : x
  2. Step 2: Convert to fraction form
    10,234.20/15,335.10 = 8,581.80/x
  3. Step 3: Cross multiply
    10,234.20x = 15,335.10 × 8,581.80
  4. Step 4: Simplify right side
    10,234.20x = 131,602,761.18
  5. Step 5: Solve for x
    x = 131,602,761.18/10,234.20
  6. Step 6: Final answer
    x = 12,859.12

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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.