Home / 11,418.48-17,122.32-3,625.20

Finding the Fourth Proportional to 11,418.48, 17,122.32 and 3,625.20

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Solution

The fourth proportional to 11,418.48, 17,122.32 and 3,625.20 is: 5,436.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.48 : 17,122.32 = 3,625.20 : x
  2. Step 2: Convert to fraction form
    11,418.48/17,122.32 = 3,625.20/x
  3. Step 3: Cross multiply
    11,418.48x = 17,122.32 × 3,625.20
  4. Step 4: Simplify right side
    11,418.48x = 62,071,834.46
  5. Step 5: Solve for x
    x = 62,071,834.46/11,418.48
  6. Step 6: Final answer
    x = 5,436.09

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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.