Home / 7,287.44-10,914.68-5,105.90

Finding the Fourth Proportional to 7,287.44, 10,914.68 and 5,105.90

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Solution

The fourth proportional to 7,287.44, 10,914.68 and 5,105.90 is: 7,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.44 : 10,914.68 = 5,105.90 : x
  2. Step 2: Convert to fraction form
    7,287.44/10,914.68 = 5,105.90/x
  3. Step 3: Cross multiply
    7,287.44x = 10,914.68 × 5,105.90
  4. Step 4: Simplify right side
    7,287.44x = 55,729,304.66
  5. Step 5: Solve for x
    x = 55,729,304.66/7,287.44
  6. Step 6: Final answer
    x = 7,647.31

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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.