Home / 13,761.48-20,642.22-3,900.85

Finding the Fourth Proportional to 13,761.48, 20,642.22 and 3,900.85

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Solution

The fourth proportional to 13,761.48, 20,642.22 and 3,900.85 is: 5,851.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761.48 : 20,642.22 = 3,900.85 : x
  2. Step 2: Convert to fraction form
    13,761.48/20,642.22 = 3,900.85/x
  3. Step 3: Cross multiply
    13,761.48x = 20,642.22 × 3,900.85
  4. Step 4: Simplify right side
    13,761.48x = 80,522,203.89
  5. Step 5: Solve for x
    x = 80,522,203.89/13,761.48
  6. Step 6: Final answer
    x = 5,851.28

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Similar ratio
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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.