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Finding the Fourth Proportional to 17,551, 26,330.82 and 5,239

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Solution

The fourth proportional to 17,551, 26,330.82 and 5,239 is: 7,859.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,551 : 26,330.82 = 5,239 : x
  2. Step 2: Convert to fraction form
    17,551/26,330.82 = 5,239/x
  3. Step 3: Cross multiply
    17,551x = 26,330.82 × 5,239
  4. Step 4: Simplify right side
    17,551x = 137,947,165.98
  5. Step 5: Solve for x
    x = 137,947,165.98/17,551
  6. Step 6: Final answer
    x = 7,859.79

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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.