Home / 11,988.28-17,982.42-4,195.27

Finding the Fourth Proportional to 11,988.28, 17,982.42 and 4,195.27

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Solution

The fourth proportional to 11,988.28, 17,982.42 and 4,195.27 is: 6,292.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.28 : 17,982.42 = 4,195.27 : x
  2. Step 2: Convert to fraction form
    11,988.28/17,982.42 = 4,195.27/x
  3. Step 3: Cross multiply
    11,988.28x = 17,982.42 × 4,195.27
  4. Step 4: Simplify right side
    11,988.28x = 75,441,107.15
  5. Step 5: Solve for x
    x = 75,441,107.15/11,988.28
  6. Step 6: Final answer
    x = 6,292.91

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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.