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Finding the Fourth Proportional to 8,791.73, 12,138.24 and 7,845.89

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Solution

The fourth proportional to 8,791.73, 12,138.24 and 7,845.89 is: 10,832.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.73 : 12,138.24 = 7,845.89 : x
  2. Step 2: Convert to fraction form
    8,791.73/12,138.24 = 7,845.89/x
  3. Step 3: Cross multiply
    8,791.73x = 12,138.24 × 7,845.89
  4. Step 4: Simplify right side
    8,791.73x = 95,235,326.18
  5. Step 5: Solve for x
    x = 95,235,326.18/8,791.73
  6. Step 6: Final answer
    x = 10,832.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.