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Finding the Fourth Proportional to 10,969.20, 16,450.20 and 4,042.80

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Solution

The fourth proportional to 10,969.20, 16,450.20 and 4,042.80 is: 6,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,969.20 : 16,450.20 = 4,042.80 : x
  2. Step 2: Convert to fraction form
    10,969.20/16,450.20 = 4,042.80/x
  3. Step 3: Cross multiply
    10,969.20x = 16,450.20 × 4,042.80
  4. Step 4: Simplify right side
    10,969.20x = 66,504,868.56
  5. Step 5: Solve for x
    x = 66,504,868.56/10,969.20
  6. Step 6: Final answer
    x = 6,062.87

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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.