Home / 11,481.69-17,220.09-4,086.57

Finding the Fourth Proportional to 11,481.69, 17,220.09 and 4,086.57

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Solution

The fourth proportional to 11,481.69, 17,220.09 and 4,086.57 is: 6,128.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481.69 : 17,220.09 = 4,086.57 : x
  2. Step 2: Convert to fraction form
    11,481.69/17,220.09 = 4,086.57/x
  3. Step 3: Cross multiply
    11,481.69x = 17,220.09 × 4,086.57
  4. Step 4: Simplify right side
    11,481.69x = 70,371,103.19
  5. Step 5: Solve for x
    x = 70,371,103.19/11,481.69
  6. Step 6: Final answer
    x = 6,128.98

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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.