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Finding the Fourth Proportional to 14,757.78, 22,139.88 and 5,523.78

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Solution

The fourth proportional to 14,757.78, 22,139.88 and 5,523.78 is: 8,286.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,757.78 : 22,139.88 = 5,523.78 : x
  2. Step 2: Convert to fraction form
    14,757.78/22,139.88 = 5,523.78/x
  3. Step 3: Cross multiply
    14,757.78x = 22,139.88 × 5,523.78
  4. Step 4: Simplify right side
    14,757.78x = 122,295,826.35
  5. Step 5: Solve for x
    x = 122,295,826.35/14,757.78
  6. Step 6: Final answer
    x = 8,286.87

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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.