Home / 10,363.20-15,543.15-3,437.70

Finding the Fourth Proportional to 10,363.20, 15,543.15 and 3,437.70

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Solution

The fourth proportional to 10,363.20, 15,543.15 and 3,437.70 is: 5,156.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,363.20 : 15,543.15 = 3,437.70 : x
  2. Step 2: Convert to fraction form
    10,363.20/15,543.15 = 3,437.70/x
  3. Step 3: Cross multiply
    10,363.20x = 15,543.15 × 3,437.70
  4. Step 4: Simplify right side
    10,363.20x = 53,432,686.76
  5. Step 5: Solve for x
    x = 53,432,686.76/10,363.20
  6. Step 6: Final answer
    x = 5,156.00

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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.