Home / 10,219.11-15,330.49-3,982.52

Finding the Fourth Proportional to 10,219.11, 15,330.49 and 3,982.52

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Solution

The fourth proportional to 10,219.11, 15,330.49 and 3,982.52 is: 5,974.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.11 : 15,330.49 = 3,982.52 : x
  2. Step 2: Convert to fraction form
    10,219.11/15,330.49 = 3,982.52/x
  3. Step 3: Cross multiply
    10,219.11x = 15,330.49 × 3,982.52
  4. Step 4: Simplify right side
    10,219.11x = 61,053,983.03
  5. Step 5: Solve for x
    x = 61,053,983.03/10,219.11
  6. Step 6: Final answer
    x = 5,974.49

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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.