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Finding the Fourth Proportional to 13,073.22, 18,041.33 and 7,105.28

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Solution

The fourth proportional to 13,073.22, 18,041.33 and 7,105.28 is: 9,805.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,073.22 : 18,041.33 = 7,105.28 : x
  2. Step 2: Convert to fraction form
    13,073.22/18,041.33 = 7,105.28/x
  3. Step 3: Cross multiply
    13,073.22x = 18,041.33 × 7,105.28
  4. Step 4: Simplify right side
    13,073.22x = 128,188,701.22
  5. Step 5: Solve for x
    x = 128,188,701.22/13,073.22
  6. Step 6: Final answer
    x = 9,805.44

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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.