Home / 15,198.80-20,974.40-9,226.46

Finding the Fourth Proportional to 15,198.80, 20,974.40 and 9,226.46

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Solution

The fourth proportional to 15,198.80, 20,974.40 and 9,226.46 is: 12,732.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,198.80 : 20,974.40 = 9,226.46 : x
  2. Step 2: Convert to fraction form
    15,198.80/20,974.40 = 9,226.46/x
  3. Step 3: Cross multiply
    15,198.80x = 20,974.40 × 9,226.46
  4. Step 4: Simplify right side
    15,198.80x = 193,519,311.62
  5. Step 5: Solve for x
    x = 193,519,311.62/15,198.80
  6. Step 6: Final answer
    x = 12,732.54

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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.