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Finding the Fourth Proportional to 8,791.02, 12,135.60 and 5,608.62

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Solution

The fourth proportional to 8,791.02, 12,135.60 and 5,608.62 is: 7,742.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.02 : 12,135.60 = 5,608.62 : x
  2. Step 2: Convert to fraction form
    8,791.02/12,135.60 = 5,608.62/x
  3. Step 3: Cross multiply
    8,791.02x = 12,135.60 × 5,608.62
  4. Step 4: Simplify right side
    8,791.02x = 68,063,968.87
  5. Step 5: Solve for x
    x = 68,063,968.87/8,791.02
  6. Step 6: Final answer
    x = 7,742.44

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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.