Home / 13,933.87-20,890.05-12,082.44

Finding the Fourth Proportional to 13,933.87, 20,890.05 and 12,082.44

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Solution

The fourth proportional to 13,933.87, 20,890.05 and 12,082.44 is: 18,114.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.87 : 20,890.05 = 12,082.44 : x
  2. Step 2: Convert to fraction form
    13,933.87/20,890.05 = 12,082.44/x
  3. Step 3: Cross multiply
    13,933.87x = 20,890.05 × 12,082.44
  4. Step 4: Simplify right side
    13,933.87x = 252,402,775.72
  5. Step 5: Solve for x
    x = 252,402,775.72/13,933.87
  6. Step 6: Final answer
    x = 18,114.33

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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.