Home / 11,997.12-16,556.22-6,691.36

Finding the Fourth Proportional to 11,997.12, 16,556.22 and 6,691.36

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Solution

The fourth proportional to 11,997.12, 16,556.22 and 6,691.36 is: 9,234.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,997.12 : 16,556.22 = 6,691.36 : x
  2. Step 2: Convert to fraction form
    11,997.12/16,556.22 = 6,691.36/x
  3. Step 3: Cross multiply
    11,997.12x = 16,556.22 × 6,691.36
  4. Step 4: Simplify right side
    11,997.12x = 110,783,628.26
  5. Step 5: Solve for x
    x = 110,783,628.26/11,997.12
  6. Step 6: Final answer
    x = 9,234.19

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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.