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Finding the Fourth Proportional to 17,611.73, 26,373.76 and 12,321.99

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Solution

The fourth proportional to 17,611.73, 26,373.76 and 12,321.99 is: 18,452.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,611.73 : 26,373.76 = 12,321.99 : x
  2. Step 2: Convert to fraction form
    17,611.73/26,373.76 = 12,321.99/x
  3. Step 3: Cross multiply
    17,611.73x = 26,373.76 × 12,321.99
  4. Step 4: Simplify right side
    17,611.73x = 324,977,171.85
  5. Step 5: Solve for x
    x = 324,977,171.85/17,611.73
  6. Step 6: Final answer
    x = 18,452.32

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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.