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Finding the Fourth Proportional to 8,548.67, 12,805.97 and 5,618.09

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Solution

The fourth proportional to 8,548.67, 12,805.97 and 5,618.09 is: 8,415.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,548.67 : 12,805.97 = 5,618.09 : x
  2. Step 2: Convert to fraction form
    8,548.67/12,805.97 = 5,618.09/x
  3. Step 3: Cross multiply
    8,548.67x = 12,805.97 × 5,618.09
  4. Step 4: Simplify right side
    8,548.67x = 71,944,999.88
  5. Step 5: Solve for x
    x = 71,944,999.88/8,548.67
  6. Step 6: Final answer
    x = 8,415.93

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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.