Home / 13,648.54-20,445.72-10,517.68

Finding the Fourth Proportional to 13,648.54, 20,445.72 and 10,517.68

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Solution

The fourth proportional to 13,648.54, 20,445.72 and 10,517.68 is: 15,755.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,648.54 : 20,445.72 = 10,517.68 : x
  2. Step 2: Convert to fraction form
    13,648.54/20,445.72 = 10,517.68/x
  3. Step 3: Cross multiply
    13,648.54x = 20,445.72 × 10,517.68
  4. Step 4: Simplify right side
    13,648.54x = 215,041,540.33
  5. Step 5: Solve for x
    x = 215,041,540.33/13,648.54
  6. Step 6: Final answer
    x = 15,755.64

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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.