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Finding the Fourth Proportional to 17,934, 26,910.72 and 8,700

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Solution

The fourth proportional to 17,934, 26,910.72 and 8,700 is: 13,054.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,934 : 26,910.72 = 8,700 : x
  2. Step 2: Convert to fraction form
    17,934/26,910.72 = 8,700/x
  3. Step 3: Cross multiply
    17,934x = 26,910.72 × 8,700
  4. Step 4: Simplify right side
    17,934x = 234,123,264
  5. Step 5: Solve for x
    x = 234,123,264/17,934
  6. Step 6: Final answer
    x = 13,054.72

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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.