Home / 10,517.49-15,778.98-3,943.80

Finding the Fourth Proportional to 10,517.49, 15,778.98 and 3,943.80

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Solution

The fourth proportional to 10,517.49, 15,778.98 and 3,943.80 is: 5,916.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517.49 : 15,778.98 = 3,943.80 : x
  2. Step 2: Convert to fraction form
    10,517.49/15,778.98 = 3,943.80/x
  3. Step 3: Cross multiply
    10,517.49x = 15,778.98 × 3,943.80
  4. Step 4: Simplify right side
    10,517.49x = 62,229,141.32
  5. Step 5: Solve for x
    x = 62,229,141.32/10,517.49
  6. Step 6: Final answer
    x = 5,916.73

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1.5x scale

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.