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Finding the Fourth Proportional to 8,889.82, 12,269.46 and 6,761.94

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Solution

The fourth proportional to 8,889.82, 12,269.46 and 6,761.94 is: 9,332.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.82 : 12,269.46 = 6,761.94 : x
  2. Step 2: Convert to fraction form
    8,889.82/12,269.46 = 6,761.94/x
  3. Step 3: Cross multiply
    8,889.82x = 12,269.46 × 6,761.94
  4. Step 4: Simplify right side
    8,889.82x = 82,965,352.35
  5. Step 5: Solve for x
    x = 82,965,352.35/8,889.82
  6. Step 6: Final answer
    x = 9,332.62

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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.