Home / 13,767.80-20,650.62-3,906.32

Finding the Fourth Proportional to 13,767.80, 20,650.62 and 3,906.32

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Solution

The fourth proportional to 13,767.80, 20,650.62 and 3,906.32 is: 5,859.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,767.80 : 20,650.62 = 3,906.32 : x
  2. Step 2: Convert to fraction form
    13,767.80/20,650.62 = 3,906.32/x
  3. Step 3: Cross multiply
    13,767.80x = 20,650.62 × 3,906.32
  4. Step 4: Simplify right side
    13,767.80x = 80,667,929.92
  5. Step 5: Solve for x
    x = 80,667,929.92/13,767.80
  6. Step 6: Final answer
    x = 5,859.17

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1.5x scale

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.