Home / 18,147.36-27,221.97-4,999.44

Finding the Fourth Proportional to 18,147.36, 27,221.97 and 4,999.44

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Solution

The fourth proportional to 18,147.36, 27,221.97 and 4,999.44 is: 7,499.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,147.36 : 27,221.97 = 4,999.44 : x
  2. Step 2: Convert to fraction form
    18,147.36/27,221.97 = 4,999.44/x
  3. Step 3: Cross multiply
    18,147.36x = 27,221.97 × 4,999.44
  4. Step 4: Simplify right side
    18,147.36x = 136,094,605.70
  5. Step 5: Solve for x
    x = 136,094,605.70/18,147.36
  6. Step 6: Final answer
    x = 7,499.42

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1.5x scale

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.