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Finding the Fourth Proportional to 8,859.67, 12,233.39 and 6,866.76

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Solution

The fourth proportional to 8,859.67, 12,233.39 and 6,866.76 is: 9,481.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.67 : 12,233.39 = 6,866.76 : x
  2. Step 2: Convert to fraction form
    8,859.67/12,233.39 = 6,866.76/x
  3. Step 3: Cross multiply
    8,859.67x = 12,233.39 × 6,866.76
  4. Step 4: Simplify right side
    8,859.67x = 84,003,753.12
  5. Step 5: Solve for x
    x = 84,003,753.12/8,859.67
  6. Step 6: Final answer
    x = 9,481.59

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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.