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Finding the Fourth Proportional to 17,979, 26,972.88 and 5,667

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Solution

The fourth proportional to 17,979, 26,972.88 and 5,667 is: 8,501.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,979 : 26,972.88 = 5,667 : x
  2. Step 2: Convert to fraction form
    17,979/26,972.88 = 5,667/x
  3. Step 3: Cross multiply
    17,979x = 26,972.88 × 5,667
  4. Step 4: Simplify right side
    17,979x = 152,855,310.96
  5. Step 5: Solve for x
    x = 152,855,310.96/17,979
  6. Step 6: Final answer
    x = 8,501.88

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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.