Home / 11,486.25-17,218.44-3,689.59

Finding the Fourth Proportional to 11,486.25, 17,218.44 and 3,689.59

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Solution

The fourth proportional to 11,486.25, 17,218.44 and 3,689.59 is: 5,530.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,486.25 : 17,218.44 = 3,689.59 : x
  2. Step 2: Convert to fraction form
    11,486.25/17,218.44 = 3,689.59/x
  3. Step 3: Cross multiply
    11,486.25x = 17,218.44 × 3,689.59
  4. Step 4: Simplify right side
    11,486.25x = 63,528,984.04
  5. Step 5: Solve for x
    x = 63,528,984.04/11,486.25
  6. Step 6: Final answer
    x = 5,530.87

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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.