Home / 8,091.88-11,168.22-7,722.52

Finding the Fourth Proportional to 8,091.88, 11,168.22 and 7,722.52

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Solution

The fourth proportional to 8,091.88, 11,168.22 and 7,722.52 is: 10,658.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.88 : 11,168.22 = 7,722.52 : x
  2. Step 2: Convert to fraction form
    8,091.88/11,168.22 = 7,722.52/x
  3. Step 3: Cross multiply
    8,091.88x = 11,168.22 × 7,722.52
  4. Step 4: Simplify right side
    8,091.88x = 86,246,802.31
  5. Step 5: Solve for x
    x = 86,246,802.31/8,091.88
  6. Step 6: Final answer
    x = 10,658.44

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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.