Home / 8,112.45-11,195.31-4,755.71

Finding the Fourth Proportional to 8,112.45, 11,195.31 and 4,755.71

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Solution

The fourth proportional to 8,112.45, 11,195.31 and 4,755.71 is: 6,562.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.45 : 11,195.31 = 4,755.71 : x
  2. Step 2: Convert to fraction form
    8,112.45/11,195.31 = 4,755.71/x
  3. Step 3: Cross multiply
    8,112.45x = 11,195.31 × 4,755.71
  4. Step 4: Simplify right side
    8,112.45x = 53,241,693.54
  5. Step 5: Solve for x
    x = 53,241,693.54/8,112.45
  6. Step 6: Final answer
    x = 6,562.96

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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.