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Finding the Fourth Proportional to 10,572.38, 15,868.92 and 8,828.54

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Solution

The fourth proportional to 10,572.38, 15,868.92 and 8,828.54 is: 13,251.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,572.38 : 15,868.92 = 8,828.54 : x
  2. Step 2: Convert to fraction form
    10,572.38/15,868.92 = 8,828.54/x
  3. Step 3: Cross multiply
    10,572.38x = 15,868.92 × 8,828.54
  4. Step 4: Simplify right side
    10,572.38x = 140,099,394.98
  5. Step 5: Solve for x
    x = 140,099,394.98/10,572.38
  6. Step 6: Final answer
    x = 13,251.45

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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.