Home / 8,491.85-12,742.96-5,367.56

Finding the Fourth Proportional to 8,491.85, 12,742.96 and 5,367.56

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Solution

The fourth proportional to 8,491.85, 12,742.96 and 5,367.56 is: 8,054.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.85 : 12,742.96 = 5,367.56 : x
  2. Step 2: Convert to fraction form
    8,491.85/12,742.96 = 5,367.56/x
  3. Step 3: Cross multiply
    8,491.85x = 12,742.96 × 5,367.56
  4. Step 4: Simplify right side
    8,491.85x = 68,398,538.66
  5. Step 5: Solve for x
    x = 68,398,538.66/8,491.85
  6. Step 6: Final answer
    x = 8,054.61

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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.