Home / 8,104.32-12,157.68-2,911.41

Finding the Fourth Proportional to 8,104.32, 12,157.68 and 2,911.41

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Solution

The fourth proportional to 8,104.32, 12,157.68 and 2,911.41 is: 4,367.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.32 : 12,157.68 = 2,911.41 : x
  2. Step 2: Convert to fraction form
    8,104.32/12,157.68 = 2,911.41/x
  3. Step 3: Cross multiply
    8,104.32x = 12,157.68 × 2,911.41
  4. Step 4: Simplify right side
    8,104.32x = 35,395,991.13
  5. Step 5: Solve for x
    x = 35,395,991.13/8,104.32
  6. Step 6: Final answer
    x = 4,367.55

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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.