Home / 7,742.91-10,680.33-6,174.75

Finding the Fourth Proportional to 7,742.91, 10,680.33 and 6,174.75

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Solution

The fourth proportional to 7,742.91, 10,680.33 and 6,174.75 is: 8,517.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,742.91 : 10,680.33 = 6,174.75 : x
  2. Step 2: Convert to fraction form
    7,742.91/10,680.33 = 6,174.75/x
  3. Step 3: Cross multiply
    7,742.91x = 10,680.33 × 6,174.75
  4. Step 4: Simplify right side
    7,742.91x = 65,948,367.67
  5. Step 5: Solve for x
    x = 65,948,367.67/7,742.91
  6. Step 6: Final answer
    x = 8,517.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.