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Finding the Fourth Proportional to 6,687.66, 9,223.22 and 4,167.15

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Solution

The fourth proportional to 6,687.66, 9,223.22 and 4,167.15 is: 5,747.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.66 : 9,223.22 = 4,167.15 : x
  2. Step 2: Convert to fraction form
    6,687.66/9,223.22 = 4,167.15/x
  3. Step 3: Cross multiply
    6,687.66x = 9,223.22 × 4,167.15
  4. Step 4: Simplify right side
    6,687.66x = 38,434,493.61
  5. Step 5: Solve for x
    x = 38,434,493.61/6,687.66
  6. Step 6: Final answer
    x = 5,747.07

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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.