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Finding the Fourth Proportional to 10,198.80, 14,073.18 and 5,721.96

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Solution

The fourth proportional to 10,198.80, 14,073.18 and 5,721.96 is: 7,895.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.80 : 14,073.18 = 5,721.96 : x
  2. Step 2: Convert to fraction form
    10,198.80/14,073.18 = 5,721.96/x
  3. Step 3: Cross multiply
    10,198.80x = 14,073.18 × 5,721.96
  4. Step 4: Simplify right side
    10,198.80x = 80,526,173.03
  5. Step 5: Solve for x
    x = 80,526,173.03/10,198.80
  6. Step 6: Final answer
    x = 7,895.65

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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.