Home / 13,944.15-20,916.09-3,414.22

Finding the Fourth Proportional to 13,944.15, 20,916.09 and 3,414.22

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Solution

The fourth proportional to 13,944.15, 20,916.09 and 3,414.22 is: 5,121.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.15 : 20,916.09 = 3,414.22 : x
  2. Step 2: Convert to fraction form
    13,944.15/20,916.09 = 3,414.22/x
  3. Step 3: Cross multiply
    13,944.15x = 20,916.09 × 3,414.22
  4. Step 4: Simplify right side
    13,944.15x = 71,412,132.80
  5. Step 5: Solve for x
    x = 71,412,132.80/13,944.15
  6. Step 6: Final answer
    x = 5,121.30

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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.