Home / 13,882.32-20,790.11-7,941.20

Finding the Fourth Proportional to 13,882.32, 20,790.11 and 7,941.20

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Solution

The fourth proportional to 13,882.32, 20,790.11 and 7,941.20 is: 11,892.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,882.32 : 20,790.11 = 7,941.20 : x
  2. Step 2: Convert to fraction form
    13,882.32/20,790.11 = 7,941.20/x
  3. Step 3: Cross multiply
    13,882.32x = 20,790.11 × 7,941.20
  4. Step 4: Simplify right side
    13,882.32x = 165,098,337.43
  5. Step 5: Solve for x
    x = 165,098,337.43/13,882.32
  6. Step 6: Final answer
    x = 11,892.71

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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.