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Finding the Fourth Proportional to 12,315.97, 16,996.04 and 6,726.97

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Solution

The fourth proportional to 12,315.97, 16,996.04 and 6,726.97 is: 9,283.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,315.97 : 16,996.04 = 6,726.97 : x
  2. Step 2: Convert to fraction form
    12,315.97/16,996.04 = 6,726.97/x
  3. Step 3: Cross multiply
    12,315.97x = 16,996.04 × 6,726.97
  4. Step 4: Simplify right side
    12,315.97x = 114,331,851.20
  5. Step 5: Solve for x
    x = 114,331,851.20/12,315.97
  6. Step 6: Final answer
    x = 9,283.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.