Home / 26,786.72-40,183.32-12,926

Finding the Fourth Proportional to 26,786.72, 40,183.32 and 12,926

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Solution

The fourth proportional to 26,786.72, 40,183.32 and 12,926 is: 19,390.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,786.72 : 40,183.32 = 12,926 : x
  2. Step 2: Convert to fraction form
    26,786.72/40,183.32 = 12,926/x
  3. Step 3: Cross multiply
    26,786.72x = 40,183.32 × 12,926
  4. Step 4: Simplify right side
    26,786.72x = 519,409,594.32
  5. Step 5: Solve for x
    x = 519,409,594.32/26,786.72
  6. Step 6: Final answer
    x = 19,390.56

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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.