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Finding the Fourth Proportional to 12,494.68, 18,742.04 and 3,729.60

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Solution

The fourth proportional to 12,494.68, 18,742.04 and 3,729.60 is: 5,594.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,494.68 : 18,742.04 = 3,729.60 : x
  2. Step 2: Convert to fraction form
    12,494.68/18,742.04 = 3,729.60/x
  3. Step 3: Cross multiply
    12,494.68x = 18,742.04 × 3,729.60
  4. Step 4: Simplify right side
    12,494.68x = 69,900,312.38
  5. Step 5: Solve for x
    x = 69,900,312.38/12,494.68
  6. Step 6: Final answer
    x = 5,594.41

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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.