Home / 8,561.15-12,843.77-2,717.76

Finding the Fourth Proportional to 8,561.15, 12,843.77 and 2,717.76

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Solution

The fourth proportional to 8,561.15, 12,843.77 and 2,717.76 is: 4,077.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,561.15 : 12,843.77 = 2,717.76 : x
  2. Step 2: Convert to fraction form
    8,561.15/12,843.77 = 2,717.76/x
  3. Step 3: Cross multiply
    8,561.15x = 12,843.77 × 2,717.76
  4. Step 4: Simplify right side
    8,561.15x = 34,906,318.93
  5. Step 5: Solve for x
    x = 34,906,318.93/8,561.15
  6. Step 6: Final answer
    x = 4,077.29

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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.