Home / 13,722.21-20,581.97-3,861.27

Finding the Fourth Proportional to 13,722.21, 20,581.97 and 3,861.27

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Solution

The fourth proportional to 13,722.21, 20,581.97 and 3,861.27 is: 5,791.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.21 : 20,581.97 = 3,861.27 : x
  2. Step 2: Convert to fraction form
    13,722.21/20,581.97 = 3,861.27/x
  3. Step 3: Cross multiply
    13,722.21x = 20,581.97 × 3,861.27
  4. Step 4: Simplify right side
    13,722.21x = 79,472,524.00
  5. Step 5: Solve for x
    x = 79,472,524.00/13,722.21
  6. Step 6: Final answer
    x = 5,791.53

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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.