Home / 8,742.19-13,115.28-3,195.53

Finding the Fourth Proportional to 8,742.19, 13,115.28 and 3,195.53

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Solution

The fourth proportional to 8,742.19, 13,115.28 and 3,195.53 is: 4,794.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.19 : 13,115.28 = 3,195.53 : x
  2. Step 2: Convert to fraction form
    8,742.19/13,115.28 = 3,195.53/x
  3. Step 3: Cross multiply
    8,742.19x = 13,115.28 × 3,195.53
  4. Step 4: Simplify right side
    8,742.19x = 41,910,215.92
  5. Step 5: Solve for x
    x = 41,910,215.92/8,742.19
  6. Step 6: Final answer
    x = 4,794.02

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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.