Home / 12,321.75-18,480.33-4,001.85

Finding the Fourth Proportional to 12,321.75, 18,480.33 and 4,001.85

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Solution

The fourth proportional to 12,321.75, 18,480.33 and 4,001.85 is: 6,002.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,321.75 : 18,480.33 = 4,001.85 : x
  2. Step 2: Convert to fraction form
    12,321.75/18,480.33 = 4,001.85/x
  3. Step 3: Cross multiply
    12,321.75x = 18,480.33 × 4,001.85
  4. Step 4: Simplify right side
    12,321.75x = 73,955,508.61
  5. Step 5: Solve for x
    x = 73,955,508.61/12,321.75
  6. Step 6: Final answer
    x = 6,002.03

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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.