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Finding the Fourth Proportional to 12,494.56, 18,745.08 and 3,729.28

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Solution

The fourth proportional to 12,494.56, 18,745.08 and 3,729.28 is: 5,594.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,494.56 : 18,745.08 = 3,729.28 : x
  2. Step 2: Convert to fraction form
    12,494.56/18,745.08 = 3,729.28/x
  3. Step 3: Cross multiply
    12,494.56x = 18,745.08 × 3,729.28
  4. Step 4: Simplify right side
    12,494.56x = 69,905,651.94
  5. Step 5: Solve for x
    x = 69,905,651.94/12,494.56
  6. Step 6: Final answer
    x = 5,594.89

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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.