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Finding the Fourth Proportional to 17,979.70, 26,981.70 and 6,293.02

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Solution

The fourth proportional to 17,979.70, 26,981.70 and 6,293.02 is: 9,443.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,979.70 : 26,981.70 = 6,293.02 : x
  2. Step 2: Convert to fraction form
    17,979.70/26,981.70 = 6,293.02/x
  3. Step 3: Cross multiply
    17,979.70x = 26,981.70 × 6,293.02
  4. Step 4: Simplify right side
    17,979.70x = 169,796,377.73
  5. Step 5: Solve for x
    x = 169,796,377.73/17,979.70
  6. Step 6: Final answer
    x = 9,443.78

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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.