Home / 13,414.10-20,123.85-11,237.90

Finding the Fourth Proportional to 13,414.10, 20,123.85 and 11,237.90

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Solution

The fourth proportional to 13,414.10, 20,123.85 and 11,237.90 is: 16,859.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.10 : 20,123.85 = 11,237.90 : x
  2. Step 2: Convert to fraction form
    13,414.10/20,123.85 = 11,237.90/x
  3. Step 3: Cross multiply
    13,414.10x = 20,123.85 × 11,237.90
  4. Step 4: Simplify right side
    13,414.10x = 226,149,813.92
  5. Step 5: Solve for x
    x = 226,149,813.92/13,414.10
  6. Step 6: Final answer
    x = 16,859.11

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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.