Home / 15,982.98-23,987.31-7,218.66

Finding the Fourth Proportional to 15,982.98, 23,987.31 and 7,218.66

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Solution

The fourth proportional to 15,982.98, 23,987.31 and 7,218.66 is: 10,833.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,982.98 : 23,987.31 = 7,218.66 : x
  2. Step 2: Convert to fraction form
    15,982.98/23,987.31 = 7,218.66/x
  3. Step 3: Cross multiply
    15,982.98x = 23,987.31 × 7,218.66
  4. Step 4: Simplify right side
    15,982.98x = 173,156,235.20
  5. Step 5: Solve for x
    x = 173,156,235.20/15,982.98
  6. Step 6: Final answer
    x = 10,833.79

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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.