Home / 13,943.10-20,914.65-4,082.38

Finding the Fourth Proportional to 13,943.10, 20,914.65 and 4,082.38

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Solution

The fourth proportional to 13,943.10, 20,914.65 and 4,082.38 is: 6,123.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.10 : 20,914.65 = 4,082.38 : x
  2. Step 2: Convert to fraction form
    13,943.10/20,914.65 = 4,082.38/x
  3. Step 3: Cross multiply
    13,943.10x = 20,914.65 × 4,082.38
  4. Step 4: Simplify right side
    13,943.10x = 85,381,496.58
  5. Step 5: Solve for x
    x = 85,381,496.58/13,943.10
  6. Step 6: Final answer
    x = 6,123.57

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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.