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Finding the Fourth Proportional to 17,750, 26,625 and 5,438

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Solution

The fourth proportional to 17,750, 26,625 and 5,438 is: 8,157

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,750 : 26,625 = 5,438 : x
  2. Step 2: Convert to fraction form
    17,750/26,625 = 5,438/x
  3. Step 3: Cross multiply
    17,750x = 26,625 × 5,438
  4. Step 4: Simplify right side
    17,750x = 144,786,750
  5. Step 5: Solve for x
    x = 144,786,750/17,750
  6. Step 6: Final answer
    x = 8,157

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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.