Home / 15,202.04-20,982.31-8,916.44

Finding the Fourth Proportional to 15,202.04, 20,982.31 and 8,916.44

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Solution

The fourth proportional to 15,202.04, 20,982.31 and 8,916.44 is: 12,306.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,202.04 : 20,982.31 = 8,916.44 : x
  2. Step 2: Convert to fraction form
    15,202.04/20,982.31 = 8,916.44/x
  3. Step 3: Cross multiply
    15,202.04x = 20,982.31 × 8,916.44
  4. Step 4: Simplify right side
    15,202.04x = 187,087,380.97
  5. Step 5: Solve for x
    x = 187,087,380.97/15,202.04
  6. Step 6: Final answer
    x = 12,306.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.