Home / 18,650.75-27,976.12-6,964.88

Finding the Fourth Proportional to 18,650.75, 27,976.12 and 6,964.88

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Solution

The fourth proportional to 18,650.75, 27,976.12 and 6,964.88 is: 10,447.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.75 : 27,976.12 = 6,964.88 : x
  2. Step 2: Convert to fraction form
    18,650.75/27,976.12 = 6,964.88/x
  3. Step 3: Cross multiply
    18,650.75x = 27,976.12 × 6,964.88
  4. Step 4: Simplify right side
    18,650.75x = 194,850,318.67
  5. Step 5: Solve for x
    x = 194,850,318.67/18,650.75
  6. Step 6: Final answer
    x = 10,447.32

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Similar ratio
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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.