Home / 12,023.88-18,029.18-4,121.96

Finding the Fourth Proportional to 12,023.88, 18,029.18 and 4,121.96

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Solution

The fourth proportional to 12,023.88, 18,029.18 and 4,121.96 is: 6,180.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,023.88 : 18,029.18 = 4,121.96 : x
  2. Step 2: Convert to fraction form
    12,023.88/18,029.18 = 4,121.96/x
  3. Step 3: Cross multiply
    12,023.88x = 18,029.18 × 4,121.96
  4. Step 4: Simplify right side
    12,023.88x = 74,315,478.95
  5. Step 5: Solve for x
    x = 74,315,478.95/12,023.88
  6. Step 6: Final answer
    x = 6,180.66

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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.