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Finding the Fourth Proportional to 11,636.39, 17,447.97 and 7,943.09

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Solution

The fourth proportional to 11,636.39, 17,447.97 and 7,943.09 is: 11,910.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,636.39 : 17,447.97 = 7,943.09 : x
  2. Step 2: Convert to fraction form
    11,636.39/17,447.97 = 7,943.09/x
  3. Step 3: Cross multiply
    11,636.39x = 17,447.97 × 7,943.09
  4. Step 4: Simplify right side
    11,636.39x = 138,590,796.03
  5. Step 5: Solve for x
    x = 138,590,796.03/11,636.39
  6. Step 6: Final answer
    x = 11,910.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.