Home / 11,418.90-17,130.36-3,625.88

Finding the Fourth Proportional to 11,418.90, 17,130.36 and 3,625.88

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Solution

The fourth proportional to 11,418.90, 17,130.36 and 3,625.88 is: 5,439.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.90 : 17,130.36 = 3,625.88 : x
  2. Step 2: Convert to fraction form
    11,418.90/17,130.36 = 3,625.88/x
  3. Step 3: Cross multiply
    11,418.90x = 17,130.36 × 3,625.88
  4. Step 4: Simplify right side
    11,418.90x = 62,112,629.72
  5. Step 5: Solve for x
    x = 62,112,629.72/11,418.90
  6. Step 6: Final answer
    x = 5,439.46

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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.