Home / 11,668.05-16,105.37-11,072.79

Finding the Fourth Proportional to 11,668.05, 16,105.37 and 11,072.79

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Solution

The fourth proportional to 11,668.05, 16,105.37 and 11,072.79 is: 15,283.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,668.05 : 16,105.37 = 11,072.79 : x
  2. Step 2: Convert to fraction form
    11,668.05/16,105.37 = 11,072.79/x
  3. Step 3: Cross multiply
    11,668.05x = 16,105.37 × 11,072.79
  4. Step 4: Simplify right side
    11,668.05x = 178,331,324.52
  5. Step 5: Solve for x
    x = 178,331,324.52/11,668.05
  6. Step 6: Final answer
    x = 15,283.73

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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.