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Finding the Fourth Proportional to 12,202.69, 16,839.81 and 6,613.69

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Solution

The fourth proportional to 12,202.69, 16,839.81 and 6,613.69 is: 9,126.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,202.69 : 16,839.81 = 6,613.69 : x
  2. Step 2: Convert to fraction form
    12,202.69/16,839.81 = 6,613.69/x
  3. Step 3: Cross multiply
    12,202.69x = 16,839.81 × 6,613.69
  4. Step 4: Simplify right side
    12,202.69x = 111,373,283.00
  5. Step 5: Solve for x
    x = 111,373,283.00/12,202.69
  6. Step 6: Final answer
    x = 9,126.95

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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.