Home / 11,680.39-16,118.30-6,375.09

Finding the Fourth Proportional to 11,680.39, 16,118.30 and 6,375.09

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Solution

The fourth proportional to 11,680.39, 16,118.30 and 6,375.09 is: 8,797.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,680.39 : 16,118.30 = 6,375.09 : x
  2. Step 2: Convert to fraction form
    11,680.39/16,118.30 = 6,375.09/x
  3. Step 3: Cross multiply
    11,680.39x = 16,118.30 × 6,375.09
  4. Step 4: Simplify right side
    11,680.39x = 102,755,581.27
  5. Step 5: Solve for x
    x = 102,755,581.27/11,680.39
  6. Step 6: Final answer
    x = 8,797.28

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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.