Home / 11,905.18-17,861.26-5,329.90

Finding the Fourth Proportional to 11,905.18, 17,861.26 and 5,329.90

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Solution

The fourth proportional to 11,905.18, 17,861.26 and 5,329.90 is: 7,996.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.18 : 17,861.26 = 5,329.90 : x
  2. Step 2: Convert to fraction form
    11,905.18/17,861.26 = 5,329.90/x
  3. Step 3: Cross multiply
    11,905.18x = 17,861.26 × 5,329.90
  4. Step 4: Simplify right side
    11,905.18x = 95,198,729.67
  5. Step 5: Solve for x
    x = 95,198,729.67/11,905.18
  6. Step 6: Final answer
    x = 7,996.41

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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.