Home / 10,219.68-15,327.99-3,198.06

Finding the Fourth Proportional to 10,219.68, 15,327.99 and 3,198.06

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Solution

The fourth proportional to 10,219.68, 15,327.99 and 3,198.06 is: 4,796.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.68 : 15,327.99 = 3,198.06 : x
  2. Step 2: Convert to fraction form
    10,219.68/15,327.99 = 3,198.06/x
  3. Step 3: Cross multiply
    10,219.68x = 15,327.99 × 3,198.06
  4. Step 4: Simplify right side
    10,219.68x = 49,019,831.70
  5. Step 5: Solve for x
    x = 49,019,831.70/10,219.68
  6. Step 6: Final answer
    x = 4,796.61

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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.