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Finding the Fourth Proportional to 8,708.33, 13,082.85 and 8,236.31

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Solution

The fourth proportional to 8,708.33, 13,082.85 and 8,236.31 is: 12,373.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.33 : 13,082.85 = 8,236.31 : x
  2. Step 2: Convert to fraction form
    8,708.33/13,082.85 = 8,236.31/x
  3. Step 3: Cross multiply
    8,708.33x = 13,082.85 × 8,236.31
  4. Step 4: Simplify right side
    8,708.33x = 107,754,342.87
  5. Step 5: Solve for x
    x = 107,754,342.87/8,708.33
  6. Step 6: Final answer
    x = 12,373.71

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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.