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Finding the Fourth Proportional to 17,079, 25,618.49 and 5,393.13

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Solution

The fourth proportional to 17,079, 25,618.49 and 5,393.13 is: 8,089.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,079 : 25,618.49 = 5,393.13 : x
  2. Step 2: Convert to fraction form
    17,079/25,618.49 = 5,393.13/x
  3. Step 3: Cross multiply
    17,079x = 25,618.49 × 5,393.13
  4. Step 4: Simplify right side
    17,079x = 138,163,846.97
  5. Step 5: Solve for x
    x = 138,163,846.97/17,079
  6. Step 6: Final answer
    x = 8,089.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.