Home / 8,791.26-12,131.55-4,812.54

Finding the Fourth Proportional to 8,791.26, 12,131.55 and 4,812.54

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Solution

The fourth proportional to 8,791.26, 12,131.55 and 4,812.54 is: 6,641.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.26 : 12,131.55 = 4,812.54 : x
  2. Step 2: Convert to fraction form
    8,791.26/12,131.55 = 4,812.54/x
  3. Step 3: Cross multiply
    8,791.26x = 12,131.55 × 4,812.54
  4. Step 4: Simplify right side
    8,791.26x = 58,383,569.64
  5. Step 5: Solve for x
    x = 58,383,569.64/8,791.26
  6. Step 6: Final answer
    x = 6,641.09

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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.