Home / 11,418.31-17,103.13-5,486.48

Finding the Fourth Proportional to 11,418.31, 17,103.13 and 5,486.48

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Solution

The fourth proportional to 11,418.31, 17,103.13 and 5,486.48 is: 8,218.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.31 : 17,103.13 = 5,486.48 : x
  2. Step 2: Convert to fraction form
    11,418.31/17,103.13 = 5,486.48/x
  3. Step 3: Cross multiply
    11,418.31x = 17,103.13 × 5,486.48
  4. Step 4: Simplify right side
    11,418.31x = 93,835,881.45
  5. Step 5: Solve for x
    x = 93,835,881.45/11,418.31
  6. Step 6: Final answer
    x = 8,218.02

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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.