Home / 13,976.75-20,965.20-4,116.15

Finding the Fourth Proportional to 13,976.75, 20,965.20 and 4,116.15

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Solution

The fourth proportional to 13,976.75, 20,965.20 and 4,116.15 is: 6,174.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.75 : 20,965.20 = 4,116.15 : x
  2. Step 2: Convert to fraction form
    13,976.75/20,965.20 = 4,116.15/x
  3. Step 3: Cross multiply
    13,976.75x = 20,965.20 × 4,116.15
  4. Step 4: Simplify right side
    13,976.75x = 86,295,892.54
  5. Step 5: Solve for x
    x = 86,295,892.54/13,976.75
  6. Step 6: Final answer
    x = 6,174.24

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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.