Home / 15,198.06-20,974.37-8,485

Finding the Fourth Proportional to 15,198.06, 20,974.37 and 8,485

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Solution

The fourth proportional to 15,198.06, 20,974.37 and 8,485 is: 11,709.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,198.06 : 20,974.37 = 8,485 : x
  2. Step 2: Convert to fraction form
    15,198.06/20,974.37 = 8,485/x
  3. Step 3: Cross multiply
    15,198.06x = 20,974.37 × 8,485
  4. Step 4: Simplify right side
    15,198.06x = 177,967,529.45
  5. Step 5: Solve for x
    x = 177,967,529.45/15,198.06
  6. Step 6: Final answer
    x = 11,709.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.