Home / 12,680.75-18,982.17-11,425.96

Finding the Fourth Proportional to 12,680.75, 18,982.17 and 11,425.96

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Solution

The fourth proportional to 12,680.75, 18,982.17 and 11,425.96 is: 17,103.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,680.75 : 18,982.17 = 11,425.96 : x
  2. Step 2: Convert to fraction form
    12,680.75/18,982.17 = 11,425.96/x
  3. Step 3: Cross multiply
    12,680.75x = 18,982.17 × 11,425.96
  4. Step 4: Simplify right side
    12,680.75x = 216,889,571.00
  5. Step 5: Solve for x
    x = 216,889,571.00/12,680.75
  6. Step 6: Final answer
    x = 17,103.84

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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.