Home / 8,268.52-12,402.77-2,112.52

Finding the Fourth Proportional to 8,268.52, 12,402.77 and 2,112.52

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Solution

The fourth proportional to 8,268.52, 12,402.77 and 2,112.52 is: 3,168.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,268.52 : 12,402.77 = 2,112.52 : x
  2. Step 2: Convert to fraction form
    8,268.52/12,402.77 = 2,112.52/x
  3. Step 3: Cross multiply
    8,268.52x = 12,402.77 × 2,112.52
  4. Step 4: Simplify right side
    8,268.52x = 26,201,099.68
  5. Step 5: Solve for x
    x = 26,201,099.68/8,268.52
  6. Step 6: Final answer
    x = 3,168.78

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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.