Home / 18,517.60-25,550.20-10,960.16

Finding the Fourth Proportional to 18,517.60, 25,550.20 and 10,960.16

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Solution

The fourth proportional to 18,517.60, 25,550.20 and 10,960.16 is: 15,122.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517.60 : 25,550.20 = 10,960.16 : x
  2. Step 2: Convert to fraction form
    18,517.60/25,550.20 = 10,960.16/x
  3. Step 3: Cross multiply
    18,517.60x = 25,550.20 × 10,960.16
  4. Step 4: Simplify right side
    18,517.60x = 280,034,280.03
  5. Step 5: Solve for x
    x = 280,034,280.03/18,517.60
  6. Step 6: Final answer
    x = 15,122.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.