Home / 13,675.46-20,513.19-3,287.21

Finding the Fourth Proportional to 13,675.46, 20,513.19 and 3,287.21

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Solution

The fourth proportional to 13,675.46, 20,513.19 and 3,287.21 is: 4,930.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.46 : 20,513.19 = 3,287.21 : x
  2. Step 2: Convert to fraction form
    13,675.46/20,513.19 = 3,287.21/x
  3. Step 3: Cross multiply
    13,675.46x = 20,513.19 × 3,287.21
  4. Step 4: Simplify right side
    13,675.46x = 67,431,163.30
  5. Step 5: Solve for x
    x = 67,431,163.30/13,675.46
  6. Step 6: Final answer
    x = 4,930.82

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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.