Home / 8,717.68-13,077.44-2,874.32

Finding the Fourth Proportional to 8,717.68, 13,077.44 and 2,874.32

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Solution

The fourth proportional to 8,717.68, 13,077.44 and 2,874.32 is: 4,311.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.68 : 13,077.44 = 2,874.32 : x
  2. Step 2: Convert to fraction form
    8,717.68/13,077.44 = 2,874.32/x
  3. Step 3: Cross multiply
    8,717.68x = 13,077.44 × 2,874.32
  4. Step 4: Simplify right side
    8,717.68x = 37,588,747.34
  5. Step 5: Solve for x
    x = 37,588,747.34/8,717.68
  6. Step 6: Final answer
    x = 4,311.78

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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.