Home / 13,906.18-20,859.36-3,517.96

Finding the Fourth Proportional to 13,906.18, 20,859.36 and 3,517.96

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Solution

The fourth proportional to 13,906.18, 20,859.36 and 3,517.96 is: 5,276.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.18 : 20,859.36 = 3,517.96 : x
  2. Step 2: Convert to fraction form
    13,906.18/20,859.36 = 3,517.96/x
  3. Step 3: Cross multiply
    13,906.18x = 20,859.36 × 3,517.96
  4. Step 4: Simplify right side
    13,906.18x = 73,382,394.11
  5. Step 5: Solve for x
    x = 73,382,394.11/13,906.18
  6. Step 6: Final answer
    x = 5,276.96

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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.