Home / 10,990.11-16,487.88-3,198.94

Finding the Fourth Proportional to 10,990.11, 16,487.88 and 3,198.94

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Solution

The fourth proportional to 10,990.11, 16,487.88 and 3,198.94 is: 4,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.11 : 16,487.88 = 3,198.94 : x
  2. Step 2: Convert to fraction form
    10,990.11/16,487.88 = 3,198.94/x
  3. Step 3: Cross multiply
    10,990.11x = 16,487.88 × 3,198.94
  4. Step 4: Simplify right side
    10,990.11x = 52,743,738.85
  5. Step 5: Solve for x
    x = 52,743,738.85/10,990.11
  6. Step 6: Final answer
    x = 4,799.20

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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.