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Finding the Fourth Proportional to 15,049.91, 20,766.83 and 8,333.88

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Solution

The fourth proportional to 15,049.91, 20,766.83 and 8,333.88 is: 11,499.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,049.91 : 20,766.83 = 8,333.88 : x
  2. Step 2: Convert to fraction form
    15,049.91/20,766.83 = 8,333.88/x
  3. Step 3: Cross multiply
    15,049.91x = 20,766.83 × 8,333.88
  4. Step 4: Simplify right side
    15,049.91x = 173,068,227.53
  5. Step 5: Solve for x
    x = 173,068,227.53/15,049.91
  6. Step 6: Final answer
    x = 11,499.62

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1.5x scale

Why These Related Problems?

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