Home / 10,545.28-15,812.55-3,522.78

Finding the Fourth Proportional to 10,545.28, 15,812.55 and 3,522.78

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Solution

The fourth proportional to 10,545.28, 15,812.55 and 3,522.78 is: 5,282.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,545.28 : 15,812.55 = 3,522.78 : x
  2. Step 2: Convert to fraction form
    10,545.28/15,812.55 = 3,522.78/x
  3. Step 3: Cross multiply
    10,545.28x = 15,812.55 × 3,522.78
  4. Step 4: Simplify right side
    10,545.28x = 55,704,134.89
  5. Step 5: Solve for x
    x = 55,704,134.89/10,545.28
  6. Step 6: Final answer
    x = 5,282.38

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1.5x scale

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.