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Finding the Fourth Proportional to 8,677.44, 11,983.62 and 7,479.96

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Solution

The fourth proportional to 8,677.44, 11,983.62 and 7,479.96 is: 10,329.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.44 : 11,983.62 = 7,479.96 : x
  2. Step 2: Convert to fraction form
    8,677.44/11,983.62 = 7,479.96/x
  3. Step 3: Cross multiply
    8,677.44x = 11,983.62 × 7,479.96
  4. Step 4: Simplify right side
    8,677.44x = 89,636,998.26
  5. Step 5: Solve for x
    x = 89,636,998.26/8,677.44
  6. Step 6: Final answer
    x = 10,329.89

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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.