Home / 12,338.76-18,504.16-4,016.78

Finding the Fourth Proportional to 12,338.76, 18,504.16 and 4,016.78

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Solution

The fourth proportional to 12,338.76, 18,504.16 and 4,016.78 is: 6,023.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,338.76 : 18,504.16 = 4,016.78 : x
  2. Step 2: Convert to fraction form
    12,338.76/18,504.16 = 4,016.78/x
  3. Step 3: Cross multiply
    12,338.76x = 18,504.16 × 4,016.78
  4. Step 4: Simplify right side
    12,338.76x = 74,327,106.63
  5. Step 5: Solve for x
    x = 74,327,106.63/12,338.76
  6. Step 6: Final answer
    x = 6,023.87

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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.