Home / 11,990.25-17,985.41-4,197.24

Finding the Fourth Proportional to 11,990.25, 17,985.41 and 4,197.24

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Solution

The fourth proportional to 11,990.25, 17,985.41 and 4,197.24 is: 6,295.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.25 : 17,985.41 = 4,197.24 : x
  2. Step 2: Convert to fraction form
    11,990.25/17,985.41 = 4,197.24/x
  3. Step 3: Cross multiply
    11,990.25x = 17,985.41 × 4,197.24
  4. Step 4: Simplify right side
    11,990.25x = 75,489,082.27
  5. Step 5: Solve for x
    x = 75,489,082.27/11,990.25
  6. Step 6: Final answer
    x = 6,295.87

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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.