Home / 11,672.30-16,107.84-6,367.20

Finding the Fourth Proportional to 11,672.30, 16,107.84 and 6,367.20

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Solution

The fourth proportional to 11,672.30, 16,107.84 and 6,367.20 is: 8,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,672.30 : 16,107.84 = 6,367.20 : x
  2. Step 2: Convert to fraction form
    11,672.30/16,107.84 = 6,367.20/x
  3. Step 3: Cross multiply
    11,672.30x = 16,107.84 × 6,367.20
  4. Step 4: Simplify right side
    11,672.30x = 102,561,838.85
  5. Step 5: Solve for x
    x = 102,561,838.85/11,672.30
  6. Step 6: Final answer
    x = 8,786.78

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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.