Home / 11,969.29-16,517.91-6,664.47

Finding the Fourth Proportional to 11,969.29, 16,517.91 and 6,664.47

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Solution

The fourth proportional to 11,969.29, 16,517.91 and 6,664.47 is: 9,197.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,969.29 : 16,517.91 = 6,664.47 : x
  2. Step 2: Convert to fraction form
    11,969.29/16,517.91 = 6,664.47/x
  3. Step 3: Cross multiply
    11,969.29x = 16,517.91 × 6,664.47
  4. Step 4: Simplify right side
    11,969.29x = 110,083,115.66
  5. Step 5: Solve for x
    x = 110,083,115.66/11,969.29
  6. Step 6: Final answer
    x = 9,197.13

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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.