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Finding the Fourth Proportional to 12,198.50, 16,833.93 and 6,609.50

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Solution

The fourth proportional to 12,198.50, 16,833.93 and 6,609.50 is: 9,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.50 : 16,833.93 = 6,609.50 : x
  2. Step 2: Convert to fraction form
    12,198.50/16,833.93 = 6,609.50/x
  3. Step 3: Cross multiply
    12,198.50x = 16,833.93 × 6,609.50
  4. Step 4: Simplify right side
    12,198.50x = 111,263,860.34
  5. Step 5: Solve for x
    x = 111,263,860.34/12,198.50
  6. Step 6: Final answer
    x = 9,121.11

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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.