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Finding the Fourth Proportional to 17,991.11, 26,986.63 and 4,843.49

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Solution

The fourth proportional to 17,991.11, 26,986.63 and 4,843.49 is: 7,265.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,991.11 : 26,986.63 = 4,843.49 : x
  2. Step 2: Convert to fraction form
    17,991.11/26,986.63 = 4,843.49/x
  3. Step 3: Cross multiply
    17,991.11x = 26,986.63 × 4,843.49
  4. Step 4: Simplify right side
    17,991.11x = 130,709,325.50
  5. Step 5: Solve for x
    x = 130,709,325.50/17,991.11
  6. Step 6: Final answer
    x = 7,265.22

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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.