Home / 7,847.22-11,772.75-3,900.33

Finding the Fourth Proportional to 7,847.22, 11,772.75 and 3,900.33

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Solution

The fourth proportional to 7,847.22, 11,772.75 and 3,900.33 is: 5,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.22 : 11,772.75 = 3,900.33 : x
  2. Step 2: Convert to fraction form
    7,847.22/11,772.75 = 3,900.33/x
  3. Step 3: Cross multiply
    7,847.22x = 11,772.75 × 3,900.33
  4. Step 4: Simplify right side
    7,847.22x = 45,917,610.01
  5. Step 5: Solve for x
    x = 45,917,610.01/7,847.22
  6. Step 6: Final answer
    x = 5,851.45

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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.