Home / 11,942.55-16,469.70-8,119.94

Finding the Fourth Proportional to 11,942.55, 16,469.70 and 8,119.94

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Solution

The fourth proportional to 11,942.55, 16,469.70 and 8,119.94 is: 11,198.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.55 : 16,469.70 = 8,119.94 : x
  2. Step 2: Convert to fraction form
    11,942.55/16,469.70 = 8,119.94/x
  3. Step 3: Cross multiply
    11,942.55x = 16,469.70 × 8,119.94
  4. Step 4: Simplify right side
    11,942.55x = 133,732,975.82
  5. Step 5: Solve for x
    x = 133,732,975.82/11,942.55
  6. Step 6: Final answer
    x = 11,198.03

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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.