Home / 8,175.11-11,268.17-5,781.99

Finding the Fourth Proportional to 8,175.11, 11,268.17 and 5,781.99

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Solution

The fourth proportional to 8,175.11, 11,268.17 and 5,781.99 is: 7,969.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,175.11 : 11,268.17 = 5,781.99 : x
  2. Step 2: Convert to fraction form
    8,175.11/11,268.17 = 5,781.99/x
  3. Step 3: Cross multiply
    8,175.11x = 11,268.17 × 5,781.99
  4. Step 4: Simplify right side
    8,175.11x = 65,152,446.26
  5. Step 5: Solve for x
    x = 65,152,446.26/8,175.11
  6. Step 6: Final answer
    x = 7,969.61

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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.