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Finding the Fourth Proportional to 15,182.92, 20,951.85 and 8,468.83

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Solution

The fourth proportional to 15,182.92, 20,951.85 and 8,468.83 is: 11,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,182.92 : 20,951.85 = 8,468.83 : x
  2. Step 2: Convert to fraction form
    15,182.92/20,951.85 = 8,468.83/x
  3. Step 3: Cross multiply
    15,182.92x = 20,951.85 × 8,468.83
  4. Step 4: Simplify right side
    15,182.92x = 177,437,655.84
  5. Step 5: Solve for x
    x = 177,437,655.84/15,182.92
  6. Step 6: Final answer
    x = 11,686.66

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.