Home / 18,137.03-27,203.49-4,987.69

Finding the Fourth Proportional to 18,137.03, 27,203.49 and 4,987.69

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Solution

The fourth proportional to 18,137.03, 27,203.49 and 4,987.69 is: 7,480.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,137.03 : 27,203.49 = 4,987.69 : x
  2. Step 2: Convert to fraction form
    18,137.03/27,203.49 = 4,987.69/x
  3. Step 3: Cross multiply
    18,137.03x = 27,203.49 × 4,987.69
  4. Step 4: Simplify right side
    18,137.03x = 135,682,507.03
  5. Step 5: Solve for x
    x = 135,682,507.03/18,137.03
  6. Step 6: Final answer
    x = 7,480.97

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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.