Home / 12,230.60-18,336.92-3,905.81

Finding the Fourth Proportional to 12,230.60, 18,336.92 and 3,905.81

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Solution

The fourth proportional to 12,230.60, 18,336.92 and 3,905.81 is: 5,855.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230.60 : 18,336.92 = 3,905.81 : x
  2. Step 2: Convert to fraction form
    12,230.60/18,336.92 = 3,905.81/x
  3. Step 3: Cross multiply
    12,230.60x = 18,336.92 × 3,905.81
  4. Step 4: Simplify right side
    12,230.60x = 71,620,414.29
  5. Step 5: Solve for x
    x = 71,620,414.29/12,230.60
  6. Step 6: Final answer
    x = 5,855.84

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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.