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Finding the Fourth Proportional to 13,371.14, 18,451.62 and 7,402.44

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Solution

The fourth proportional to 13,371.14, 18,451.62 and 7,402.44 is: 10,215.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.14 : 18,451.62 = 7,402.44 : x
  2. Step 2: Convert to fraction form
    13,371.14/18,451.62 = 7,402.44/x
  3. Step 3: Cross multiply
    13,371.14x = 18,451.62 × 7,402.44
  4. Step 4: Simplify right side
    13,371.14x = 136,587,009.95
  5. Step 5: Solve for x
    x = 136,587,009.95/13,371.14
  6. Step 6: Final answer
    x = 10,215.06

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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.