Home / 13,517.38-20,275.86-4,157.52

Finding the Fourth Proportional to 13,517.38, 20,275.86 and 4,157.52

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Solution

The fourth proportional to 13,517.38, 20,275.86 and 4,157.52 is: 6,236.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,517.38 : 20,275.86 = 4,157.52 : x
  2. Step 2: Convert to fraction form
    13,517.38/20,275.86 = 4,157.52/x
  3. Step 3: Cross multiply
    13,517.38x = 20,275.86 × 4,157.52
  4. Step 4: Simplify right side
    13,517.38x = 84,297,293.47
  5. Step 5: Solve for x
    x = 84,297,293.47/13,517.38
  6. Step 6: Final answer
    x = 6,236.22

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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.