Home / 10,786.39-16,179.57-3,391.50

Finding the Fourth Proportional to 10,786.39, 16,179.57 and 3,391.50

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Solution

The fourth proportional to 10,786.39, 16,179.57 and 3,391.50 is: 5,087.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,786.39 : 16,179.57 = 3,391.50 : x
  2. Step 2: Convert to fraction form
    10,786.39/16,179.57 = 3,391.50/x
  3. Step 3: Cross multiply
    10,786.39x = 16,179.57 × 3,391.50
  4. Step 4: Simplify right side
    10,786.39x = 54,873,011.66
  5. Step 5: Solve for x
    x = 54,873,011.66/10,786.39
  6. Step 6: Final answer
    x = 5,087.25

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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.