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Finding the Fourth Proportional to 16,881.48, 25,319.92 and 5,193.72

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Solution

The fourth proportional to 16,881.48, 25,319.92 and 5,193.72 is: 7,789.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,881.48 : 25,319.92 = 5,193.72 : x
  2. Step 2: Convert to fraction form
    16,881.48/25,319.92 = 5,193.72/x
  3. Step 3: Cross multiply
    16,881.48x = 25,319.92 × 5,193.72
  4. Step 4: Simplify right side
    16,881.48x = 131,504,574.90
  5. Step 5: Solve for x
    x = 131,504,574.90/16,881.48
  6. Step 6: Final answer
    x = 7,789.87

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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.