Home / 11,987.56-17,983.14-4,195.75

Finding the Fourth Proportional to 11,987.56, 17,983.14 and 4,195.75

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Solution

The fourth proportional to 11,987.56, 17,983.14 and 4,195.75 is: 6,294.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.56 : 17,983.14 = 4,195.75 : x
  2. Step 2: Convert to fraction form
    11,987.56/17,983.14 = 4,195.75/x
  3. Step 3: Cross multiply
    11,987.56x = 17,983.14 × 4,195.75
  4. Step 4: Simplify right side
    11,987.56x = 75,452,759.66
  5. Step 5: Solve for x
    x = 75,452,759.66/11,987.56
  6. Step 6: Final answer
    x = 6,294.26

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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.