Home / 10,545.28-15,817.80-3,149.80

Finding the Fourth Proportional to 10,545.28, 15,817.80 and 3,149.80

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Solution

The fourth proportional to 10,545.28, 15,817.80 and 3,149.80 is: 4,724.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,545.28 : 15,817.80 = 3,149.80 : x
  2. Step 2: Convert to fraction form
    10,545.28/15,817.80 = 3,149.80/x
  3. Step 3: Cross multiply
    10,545.28x = 15,817.80 × 3,149.80
  4. Step 4: Simplify right side
    10,545.28x = 49,822,906.44
  5. Step 5: Solve for x
    x = 49,822,906.44/10,545.28
  6. Step 6: Final answer
    x = 4,724.66

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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.