Home / 18,902.38-28,292.95-12,562.71

Finding the Fourth Proportional to 18,902.38, 28,292.95 and 12,562.71

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Solution

The fourth proportional to 18,902.38, 28,292.95 and 12,562.71 is: 18,803.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902.38 : 28,292.95 = 12,562.71 : x
  2. Step 2: Convert to fraction form
    18,902.38/28,292.95 = 12,562.71/x
  3. Step 3: Cross multiply
    18,902.38x = 28,292.95 × 12,562.71
  4. Step 4: Simplify right side
    18,902.38x = 355,436,125.89
  5. Step 5: Solve for x
    x = 355,436,125.89/18,902.38
  6. Step 6: Final answer
    x = 18,803.78

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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.