Home / 13,943.55-20,913.79-4,082.92

Finding the Fourth Proportional to 13,943.55, 20,913.79 and 4,082.92

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Solution

The fourth proportional to 13,943.55, 20,913.79 and 4,082.92 is: 6,123.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.55 : 20,913.79 = 4,082.92 : x
  2. Step 2: Convert to fraction form
    13,943.55/20,913.79 = 4,082.92/x
  3. Step 3: Cross multiply
    13,943.55x = 20,913.79 × 4,082.92
  4. Step 4: Simplify right side
    13,943.55x = 85,389,331.47
  5. Step 5: Solve for x
    x = 85,389,331.47/13,943.55
  6. Step 6: Final answer
    x = 6,123.93

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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.