Home / 10,380.13-15,568.52-2,982.90

Finding the Fourth Proportional to 10,380.13, 15,568.52 and 2,982.90

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Solution

The fourth proportional to 10,380.13, 15,568.52 and 2,982.90 is: 4,473.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.13 : 15,568.52 = 2,982.90 : x
  2. Step 2: Convert to fraction form
    10,380.13/15,568.52 = 2,982.90/x
  3. Step 3: Cross multiply
    10,380.13x = 15,568.52 × 2,982.90
  4. Step 4: Simplify right side
    10,380.13x = 46,439,338.31
  5. Step 5: Solve for x
    x = 46,439,338.31/10,380.13
  6. Step 6: Final answer
    x = 4,473.87

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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.