Home / 8,111.52-12,167.28-2,268.59

Finding the Fourth Proportional to 8,111.52, 12,167.28 and 2,268.59

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Solution

The fourth proportional to 8,111.52, 12,167.28 and 2,268.59 is: 3,402.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,111.52 : 12,167.28 = 2,268.59 : x
  2. Step 2: Convert to fraction form
    8,111.52/12,167.28 = 2,268.59/x
  3. Step 3: Cross multiply
    8,111.52x = 12,167.28 × 2,268.59
  4. Step 4: Simplify right side
    8,111.52x = 27,602,508.90
  5. Step 5: Solve for x
    x = 27,602,508.90/8,111.52
  6. Step 6: Final answer
    x = 3,402.88

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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.