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Finding the Fourth Proportional to 10,369.13, 15,553.69 and 3,443.63

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Solution

The fourth proportional to 10,369.13, 15,553.69 and 3,443.63 is: 5,165.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,369.13 : 15,553.69 = 3,443.63 : x
  2. Step 2: Convert to fraction form
    10,369.13/15,553.69 = 3,443.63/x
  3. Step 3: Cross multiply
    10,369.13x = 15,553.69 × 3,443.63
  4. Step 4: Simplify right side
    10,369.13x = 53,561,067.12
  5. Step 5: Solve for x
    x = 53,561,067.12/10,369.13
  6. Step 6: Final answer
    x = 5,165.44

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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.