Home / 10,983.46-16,481.95-4,318.78

Finding the Fourth Proportional to 10,983.46, 16,481.95 and 4,318.78

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Solution

The fourth proportional to 10,983.46, 16,481.95 and 4,318.78 is: 6,480.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,983.46 : 16,481.95 = 4,318.78 : x
  2. Step 2: Convert to fraction form
    10,983.46/16,481.95 = 4,318.78/x
  3. Step 3: Cross multiply
    10,983.46x = 16,481.95 × 4,318.78
  4. Step 4: Simplify right side
    10,983.46x = 71,181,916.02
  5. Step 5: Solve for x
    x = 71,181,916.02/10,983.46
  6. Step 6: Final answer
    x = 6,480.83

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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.