Home / 12,223.30-18,336.30-3,901.90

Finding the Fourth Proportional to 12,223.30, 18,336.30 and 3,901.90

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Solution

The fourth proportional to 12,223.30, 18,336.30 and 3,901.90 is: 5,853.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223.30 : 18,336.30 = 3,901.90 : x
  2. Step 2: Convert to fraction form
    12,223.30/18,336.30 = 3,901.90/x
  3. Step 3: Cross multiply
    12,223.30x = 18,336.30 × 3,901.90
  4. Step 4: Simplify right side
    12,223.30x = 71,546,408.97
  5. Step 5: Solve for x
    x = 71,546,408.97/12,223.30
  6. Step 6: Final answer
    x = 5,853.28

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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.