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Finding the Fourth Proportional to 12,550.72, 18,824.64 and 3,317.44

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Solution

The fourth proportional to 12,550.72, 18,824.64 and 3,317.44 is: 4,975.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,550.72 : 18,824.64 = 3,317.44 : x
  2. Step 2: Convert to fraction form
    12,550.72/18,824.64 = 3,317.44/x
  3. Step 3: Cross multiply
    12,550.72x = 18,824.64 × 3,317.44
  4. Step 4: Simplify right side
    12,550.72x = 62,449,613.72
  5. Step 5: Solve for x
    x = 62,449,613.72/12,550.72
  6. Step 6: Final answer
    x = 4,975.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.