Home / 11,191.14-16,786.80-3,399.84

Finding the Fourth Proportional to 11,191.14, 16,786.80 and 3,399.84

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Solution

The fourth proportional to 11,191.14, 16,786.80 and 3,399.84 is: 5,099.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.14 : 16,786.80 = 3,399.84 : x
  2. Step 2: Convert to fraction form
    11,191.14/16,786.80 = 3,399.84/x
  3. Step 3: Cross multiply
    11,191.14x = 16,786.80 × 3,399.84
  4. Step 4: Simplify right side
    11,191.14x = 57,072,434.11
  5. Step 5: Solve for x
    x = 57,072,434.11/11,191.14
  6. Step 6: Final answer
    x = 5,099.79

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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.