Home / 11,951.22-17,920.26-9,170.94

Finding the Fourth Proportional to 11,951.22, 17,920.26 and 9,170.94

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Solution

The fourth proportional to 11,951.22, 17,920.26 and 9,170.94 is: 13,751.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,951.22 : 17,920.26 = 9,170.94 : x
  2. Step 2: Convert to fraction form
    11,951.22/17,920.26 = 9,170.94/x
  3. Step 3: Cross multiply
    11,951.22x = 17,920.26 × 9,170.94
  4. Step 4: Simplify right side
    11,951.22x = 164,345,629.24
  5. Step 5: Solve for x
    x = 164,345,629.24/11,951.22
  6. Step 6: Final answer
    x = 13,751.37

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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.