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Finding the Fourth Proportional to 16,728.52, 25,097 and 11,807.78

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Solution

The fourth proportional to 16,728.52, 25,097 and 11,807.78 is: 17,714.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,728.52 : 25,097 = 11,807.78 : x
  2. Step 2: Convert to fraction form
    16,728.52/25,097 = 11,807.78/x
  3. Step 3: Cross multiply
    16,728.52x = 25,097 × 11,807.78
  4. Step 4: Simplify right side
    16,728.52x = 296,339,854.66
  5. Step 5: Solve for x
    x = 296,339,854.66/16,728.52
  6. Step 6: Final answer
    x = 17,714.65

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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.