Home / 10,786.08-16,179.12-3,391.68

Finding the Fourth Proportional to 10,786.08, 16,179.12 and 3,391.68

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Solution

The fourth proportional to 10,786.08, 16,179.12 and 3,391.68 is: 5,087.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,786.08 : 16,179.12 = 3,391.68 : x
  2. Step 2: Convert to fraction form
    10,786.08/16,179.12 = 3,391.68/x
  3. Step 3: Cross multiply
    10,786.08x = 16,179.12 × 3,391.68
  4. Step 4: Simplify right side
    10,786.08x = 54,874,397.72
  5. Step 5: Solve for x
    x = 54,874,397.72/10,786.08
  6. Step 6: Final answer
    x = 5,087.52

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Similar ratio
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1.5x scale

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.