Home / 12,222.46-18,324.70-3,897.69

Finding the Fourth Proportional to 12,222.46, 18,324.70 and 3,897.69

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Solution

The fourth proportional to 12,222.46, 18,324.70 and 3,897.69 is: 5,843.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.46 : 18,324.70 = 3,897.69 : x
  2. Step 2: Convert to fraction form
    12,222.46/18,324.70 = 3,897.69/x
  3. Step 3: Cross multiply
    12,222.46x = 18,324.70 × 3,897.69
  4. Step 4: Simplify right side
    12,222.46x = 71,423,921.48
  5. Step 5: Solve for x
    x = 71,423,921.48/12,222.46
  6. Step 6: Final answer
    x = 5,843.66

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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.