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Finding the Fourth Proportional to 9,301.29, 12,837.29 and 7,179.90

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Solution

The fourth proportional to 9,301.29, 12,837.29 and 7,179.90 is: 9,909.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,301.29 : 12,837.29 = 7,179.90 : x
  2. Step 2: Convert to fraction form
    9,301.29/12,837.29 = 7,179.90/x
  3. Step 3: Cross multiply
    9,301.29x = 12,837.29 × 7,179.90
  4. Step 4: Simplify right side
    9,301.29x = 92,170,422.57
  5. Step 5: Solve for x
    x = 92,170,422.57/9,301.29
  6. Step 6: Final answer
    x = 9,909.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.