Home / 8,579.29-12,868.80-2,735.86

Finding the Fourth Proportional to 8,579.29, 12,868.80 and 2,735.86

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Solution

The fourth proportional to 8,579.29, 12,868.80 and 2,735.86 is: 4,103.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.29 : 12,868.80 = 2,735.86 : x
  2. Step 2: Convert to fraction form
    8,579.29/12,868.80 = 2,735.86/x
  3. Step 3: Cross multiply
    8,579.29x = 12,868.80 × 2,735.86
  4. Step 4: Simplify right side
    8,579.29x = 35,207,235.17
  5. Step 5: Solve for x
    x = 35,207,235.17/8,579.29
  6. Step 6: Final answer
    x = 4,103.75

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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.