Home / 11,144.44-15,378.84-6,665.54

Finding the Fourth Proportional to 11,144.44, 15,378.84 and 6,665.54

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Solution

The fourth proportional to 11,144.44, 15,378.84 and 6,665.54 is: 9,198.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.44 : 15,378.84 = 6,665.54 : x
  2. Step 2: Convert to fraction form
    11,144.44/15,378.84 = 6,665.54/x
  3. Step 3: Cross multiply
    11,144.44x = 15,378.84 × 6,665.54
  4. Step 4: Simplify right side
    11,144.44x = 102,508,273.17
  5. Step 5: Solve for x
    x = 102,508,273.17/11,144.44
  6. Step 6: Final answer
    x = 9,198.15

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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.