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Finding the Fourth Proportional to 15,125.10, 22,660.65 and 7,316.70

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Solution

The fourth proportional to 15,125.10, 22,660.65 and 7,316.70 is: 10,961.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,125.10 : 22,660.65 = 7,316.70 : x
  2. Step 2: Convert to fraction form
    15,125.10/22,660.65 = 7,316.70/x
  3. Step 3: Cross multiply
    15,125.10x = 22,660.65 × 7,316.70
  4. Step 4: Simplify right side
    15,125.10x = 165,801,177.86
  5. Step 5: Solve for x
    x = 165,801,177.86/15,125.10
  6. Step 6: Final answer
    x = 10,961.99

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.