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Finding the Fourth Proportional to 11,172.77, 16,744.04 and 4,243.49

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Solution

The fourth proportional to 11,172.77, 16,744.04 and 4,243.49 is: 6,359.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.77 : 16,744.04 = 4,243.49 : x
  2. Step 2: Convert to fraction form
    11,172.77/16,744.04 = 4,243.49/x
  3. Step 3: Cross multiply
    11,172.77x = 16,744.04 × 4,243.49
  4. Step 4: Simplify right side
    11,172.77x = 71,053,145.08
  5. Step 5: Solve for x
    x = 71,053,145.08/11,172.77
  6. Step 6: Final answer
    x = 6,359.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.