Home / 13,943.62-20,917.26-4,082.80

Finding the Fourth Proportional to 13,943.62, 20,917.26 and 4,082.80

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Solution

The fourth proportional to 13,943.62, 20,917.26 and 4,082.80 is: 6,124.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.62 : 20,917.26 = 4,082.80 : x
  2. Step 2: Convert to fraction form
    13,943.62/20,917.26 = 4,082.80/x
  3. Step 3: Cross multiply
    13,943.62x = 20,917.26 × 4,082.80
  4. Step 4: Simplify right side
    13,943.62x = 85,400,989.13
  5. Step 5: Solve for x
    x = 85,400,989.13/13,943.62
  6. Step 6: Final answer
    x = 6,124.74

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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.