Home / 10,286.66-15,439.11-5,292.56

Finding the Fourth Proportional to 10,286.66, 15,439.11 and 5,292.56

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Solution

The fourth proportional to 10,286.66, 15,439.11 and 5,292.56 is: 7,943.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.66 : 15,439.11 = 5,292.56 : x
  2. Step 2: Convert to fraction form
    10,286.66/15,439.11 = 5,292.56/x
  3. Step 3: Cross multiply
    10,286.66x = 15,439.11 × 5,292.56
  4. Step 4: Simplify right side
    10,286.66x = 81,712,454.62
  5. Step 5: Solve for x
    x = 81,712,454.62/10,286.66
  6. Step 6: Final answer
    x = 7,943.53

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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.