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Finding the Fourth Proportional to 12,372.93, 18,557.42 and 3,605.80

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Solution

The fourth proportional to 12,372.93, 18,557.42 and 3,605.80 is: 5,408.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.93 : 18,557.42 = 3,605.80 : x
  2. Step 2: Convert to fraction form
    12,372.93/18,557.42 = 3,605.80/x
  3. Step 3: Cross multiply
    12,372.93x = 18,557.42 × 3,605.80
  4. Step 4: Simplify right side
    12,372.93x = 66,914,234.22
  5. Step 5: Solve for x
    x = 66,914,234.22/12,372.93
  6. Step 6: Final answer
    x = 5,408.12

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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.