Home / 13,840.97-20,761.46-3,452.72

Finding the Fourth Proportional to 13,840.97, 20,761.46 and 3,452.72

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Solution

The fourth proportional to 13,840.97, 20,761.46 and 3,452.72 is: 5,179.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.97 : 20,761.46 = 3,452.72 : x
  2. Step 2: Convert to fraction form
    13,840.97/20,761.46 = 3,452.72/x
  3. Step 3: Cross multiply
    13,840.97x = 20,761.46 × 3,452.72
  4. Step 4: Simplify right side
    13,840.97x = 71,683,568.71
  5. Step 5: Solve for x
    x = 71,683,568.71/13,840.97
  6. Step 6: Final answer
    x = 5,179.08

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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.