Home / 11,989.88-17,984.82-3,669.92

Finding the Fourth Proportional to 11,989.88, 17,984.82 and 3,669.92

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Solution

The fourth proportional to 11,989.88, 17,984.82 and 3,669.92 is: 5,504.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.88 : 17,984.82 = 3,669.92 : x
  2. Step 2: Convert to fraction form
    11,989.88/17,984.82 = 3,669.92/x
  3. Step 3: Cross multiply
    11,989.88x = 17,984.82 × 3,669.92
  4. Step 4: Simplify right side
    11,989.88x = 66,002,850.61
  5. Step 5: Solve for x
    x = 66,002,850.61/11,989.88
  6. Step 6: Final answer
    x = 5,504.88

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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.