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Finding the Fourth Proportional to 13,012.43, 17,957.13 and 7,044.09

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Solution

The fourth proportional to 13,012.43, 17,957.13 and 7,044.09 is: 9,720.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.43 : 17,957.13 = 7,044.09 : x
  2. Step 2: Convert to fraction form
    13,012.43/17,957.13 = 7,044.09/x
  3. Step 3: Cross multiply
    13,012.43x = 17,957.13 × 7,044.09
  4. Step 4: Simplify right side
    13,012.43x = 126,491,647.12
  5. Step 5: Solve for x
    x = 126,491,647.12/13,012.43
  6. Step 6: Final answer
    x = 9,720.84

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.