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Finding the Fourth Proportional to 8,729.70, 13,084.14 and 6,082.87

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Solution

The fourth proportional to 8,729.70, 13,084.14 and 6,082.87 is: 9,117.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.70 : 13,084.14 = 6,082.87 : x
  2. Step 2: Convert to fraction form
    8,729.70/13,084.14 = 6,082.87/x
  3. Step 3: Cross multiply
    8,729.70x = 13,084.14 × 6,082.87
  4. Step 4: Simplify right side
    8,729.70x = 79,589,067.16
  5. Step 5: Solve for x
    x = 79,589,067.16/8,729.70
  6. Step 6: Final answer
    x = 9,117.05

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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.