Home / 12,916.97-19,378.19-4,152.57

Finding the Fourth Proportional to 12,916.97, 19,378.19 and 4,152.57

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Solution

The fourth proportional to 12,916.97, 19,378.19 and 4,152.57 is: 6,229.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916.97 : 19,378.19 = 4,152.57 : x
  2. Step 2: Convert to fraction form
    12,916.97/19,378.19 = 4,152.57/x
  3. Step 3: Cross multiply
    12,916.97x = 19,378.19 × 4,152.57
  4. Step 4: Simplify right side
    12,916.97x = 80,469,204.80
  5. Step 5: Solve for x
    x = 80,469,204.80/12,916.97
  6. Step 6: Final answer
    x = 6,229.73

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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.