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Finding the Fourth Proportional to 17,383.40, 26,083.20 and 9,072.80

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Solution

The fourth proportional to 17,383.40, 26,083.20 and 9,072.80 is: 13,613.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,383.40 : 26,083.20 = 9,072.80 : x
  2. Step 2: Convert to fraction form
    17,383.40/26,083.20 = 9,072.80/x
  3. Step 3: Cross multiply
    17,383.40x = 26,083.20 × 9,072.80
  4. Step 4: Simplify right side
    17,383.40x = 236,647,656.96
  5. Step 5: Solve for x
    x = 236,647,656.96/17,383.40
  6. Step 6: Final answer
    x = 13,613.43

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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.