Home / 10,217.41-15,318.32-5,283.90

Finding the Fourth Proportional to 10,217.41, 15,318.32 and 5,283.90

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Solution

The fourth proportional to 10,217.41, 15,318.32 and 5,283.90 is: 7,921.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.41 : 15,318.32 = 5,283.90 : x
  2. Step 2: Convert to fraction form
    10,217.41/15,318.32 = 5,283.90/x
  3. Step 3: Cross multiply
    10,217.41x = 15,318.32 × 5,283.90
  4. Step 4: Simplify right side
    10,217.41x = 80,940,471.05
  5. Step 5: Solve for x
    x = 80,940,471.05/10,217.41
  6. Step 6: Final answer
    x = 7,921.82

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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.