Home / 11,989.27-17,987.42-6,149.95

Finding the Fourth Proportional to 11,989.27, 17,987.42 and 6,149.95

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Solution

The fourth proportional to 11,989.27, 17,987.42 and 6,149.95 is: 9,226.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,989.27 : 17,987.42 = 6,149.95 : x
  2. Step 2: Convert to fraction form
    11,989.27/17,987.42 = 6,149.95/x
  3. Step 3: Cross multiply
    11,989.27x = 17,987.42 × 6,149.95
  4. Step 4: Simplify right side
    11,989.27x = 110,621,702.88
  5. Step 5: Solve for x
    x = 110,621,702.88/11,989.27
  6. Step 6: Final answer
    x = 9,226.73

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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.