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Finding the Fourth Proportional to 8,745.48, 12,067.14 and 5,208.66

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Solution

The fourth proportional to 8,745.48, 12,067.14 and 5,208.66 is: 7,186.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.48 : 12,067.14 = 5,208.66 : x
  2. Step 2: Convert to fraction form
    8,745.48/12,067.14 = 5,208.66/x
  3. Step 3: Cross multiply
    8,745.48x = 12,067.14 × 5,208.66
  4. Step 4: Simplify right side
    8,745.48x = 62,853,629.43
  5. Step 5: Solve for x
    x = 62,853,629.43/8,745.48
  6. Step 6: Final answer
    x = 7,186.98

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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.