Home / 11,937.26-17,905.87-3,172.18

Finding the Fourth Proportional to 11,937.26, 17,905.87 and 3,172.18

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Solution

The fourth proportional to 11,937.26, 17,905.87 and 3,172.18 is: 4,758.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,937.26 : 17,905.87 = 3,172.18 : x
  2. Step 2: Convert to fraction form
    11,937.26/17,905.87 = 3,172.18/x
  3. Step 3: Cross multiply
    11,937.26x = 17,905.87 × 3,172.18
  4. Step 4: Simplify right side
    11,937.26x = 56,800,564.39
  5. Step 5: Solve for x
    x = 56,800,564.39/11,937.26
  6. Step 6: Final answer
    x = 4,758.26

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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.