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Finding the Fourth Proportional to 9,329.94, 13,990.11 and 2,755.29

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Solution

The fourth proportional to 9,329.94, 13,990.11 and 2,755.29 is: 4,131.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.94 : 13,990.11 = 2,755.29 : x
  2. Step 2: Convert to fraction form
    9,329.94/13,990.11 = 2,755.29/x
  3. Step 3: Cross multiply
    9,329.94x = 13,990.11 × 2,755.29
  4. Step 4: Simplify right side
    9,329.94x = 38,546,810.18
  5. Step 5: Solve for x
    x = 38,546,810.18/9,329.94
  6. Step 6: Final answer
    x = 4,131.52

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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.