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Finding the Fourth Proportional to 17,391.98, 26,087.97 and 8,155.82

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Solution

The fourth proportional to 17,391.98, 26,087.97 and 8,155.82 is: 12,233.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,391.98 : 26,087.97 = 8,155.82 : x
  2. Step 2: Convert to fraction form
    17,391.98/26,087.97 = 8,155.82/x
  3. Step 3: Cross multiply
    17,391.98x = 26,087.97 × 8,155.82
  4. Step 4: Simplify right side
    17,391.98x = 212,768,787.49
  5. Step 5: Solve for x
    x = 212,768,787.49/17,391.98
  6. Step 6: Final answer
    x = 12,233.73

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1.5x scale

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.