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Finding the Fourth Proportional to 8,791.74, 13,187.61 and 4,173.66

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Solution

The fourth proportional to 8,791.74, 13,187.61 and 4,173.66 is: 6,260.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.74 : 13,187.61 = 4,173.66 : x
  2. Step 2: Convert to fraction form
    8,791.74/13,187.61 = 4,173.66/x
  3. Step 3: Cross multiply
    8,791.74x = 13,187.61 × 4,173.66
  4. Step 4: Simplify right side
    8,791.74x = 55,040,600.35
  5. Step 5: Solve for x
    x = 55,040,600.35/8,791.74
  6. Step 6: Final answer
    x = 6,260.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.