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Finding the Fourth Proportional to 8,075.46, 11,139.10 and 5,553.19

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Solution

The fourth proportional to 8,075.46, 11,139.10 and 5,553.19 is: 7,659.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.46 : 11,139.10 = 5,553.19 : x
  2. Step 2: Convert to fraction form
    8,075.46/11,139.10 = 5,553.19/x
  3. Step 3: Cross multiply
    8,075.46x = 11,139.10 × 5,553.19
  4. Step 4: Simplify right side
    8,075.46x = 61,857,538.73
  5. Step 5: Solve for x
    x = 61,857,538.73/8,075.46
  6. Step 6: Final answer
    x = 7,659.94

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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.