Home / 10,198.17-15,280.65-3,620.97

Finding the Fourth Proportional to 10,198.17, 15,280.65 and 3,620.97

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Solution

The fourth proportional to 10,198.17, 15,280.65 and 3,620.97 is: 5,425.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.17 : 15,280.65 = 3,620.97 : x
  2. Step 2: Convert to fraction form
    10,198.17/15,280.65 = 3,620.97/x
  3. Step 3: Cross multiply
    10,198.17x = 15,280.65 × 3,620.97
  4. Step 4: Simplify right side
    10,198.17x = 55,330,775.23
  5. Step 5: Solve for x
    x = 55,330,775.23/10,198.17
  6. Step 6: Final answer
    x = 5,425.56

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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.