Home / 11,945.12-17,918.36-3,625.41

Finding the Fourth Proportional to 11,945.12, 17,918.36 and 3,625.41

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Solution

The fourth proportional to 11,945.12, 17,918.36 and 3,625.41 is: 5,438.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.12 : 17,918.36 = 3,625.41 : x
  2. Step 2: Convert to fraction form
    11,945.12/17,918.36 = 3,625.41/x
  3. Step 3: Cross multiply
    11,945.12x = 17,918.36 × 3,625.41
  4. Step 4: Simplify right side
    11,945.12x = 64,961,383.79
  5. Step 5: Solve for x
    x = 64,961,383.79/11,945.12
  6. Step 6: Final answer
    x = 5,438.32

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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.