Home / 12,198.20-16,833.56-6,609.20

Finding the Fourth Proportional to 12,198.20, 16,833.56 and 6,609.20

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Solution

The fourth proportional to 12,198.20, 16,833.56 and 6,609.20 is: 9,120.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.20 : 16,833.56 = 6,609.20 : x
  2. Step 2: Convert to fraction form
    12,198.20/16,833.56 = 6,609.20/x
  3. Step 3: Cross multiply
    12,198.20x = 16,833.56 × 6,609.20
  4. Step 4: Simplify right side
    12,198.20x = 111,256,364.75
  5. Step 5: Solve for x
    x = 111,256,364.75/12,198.20
  6. Step 6: Final answer
    x = 9,120.72

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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.