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Finding the Fourth Proportional to 8,998.45, 13,481.82 and 8,019.97

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Solution

The fourth proportional to 8,998.45, 13,481.82 and 8,019.97 is: 12,015.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,998.45 : 13,481.82 = 8,019.97 : x
  2. Step 2: Convert to fraction form
    8,998.45/13,481.82 = 8,019.97/x
  3. Step 3: Cross multiply
    8,998.45x = 13,481.82 × 8,019.97
  4. Step 4: Simplify right side
    8,998.45x = 108,123,791.95
  5. Step 5: Solve for x
    x = 108,123,791.95/8,998.45
  6. Step 6: Final answer
    x = 12,015.82

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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.