Home / 19,481.46-26,878.11-11,919.92

Finding the Fourth Proportional to 19,481.46, 26,878.11 and 11,919.92

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Solution

The fourth proportional to 19,481.46, 26,878.11 and 11,919.92 is: 16,445.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,481.46 : 26,878.11 = 11,919.92 : x
  2. Step 2: Convert to fraction form
    19,481.46/26,878.11 = 11,919.92/x
  3. Step 3: Cross multiply
    19,481.46x = 26,878.11 × 11,919.92
  4. Step 4: Simplify right side
    19,481.46x = 320,384,786.56
  5. Step 5: Solve for x
    x = 320,384,786.56/19,481.46
  6. Step 6: Final answer
    x = 16,445.63

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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.