Home / 18,997.44-28,453.33-9,144.09

Finding the Fourth Proportional to 18,997.44, 28,453.33 and 9,144.09

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Solution

The fourth proportional to 18,997.44, 28,453.33 and 9,144.09 is: 13,695.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997.44 : 28,453.33 = 9,144.09 : x
  2. Step 2: Convert to fraction form
    18,997.44/28,453.33 = 9,144.09/x
  3. Step 3: Cross multiply
    18,997.44x = 28,453.33 × 9,144.09
  4. Step 4: Simplify right side
    18,997.44x = 260,179,770.31
  5. Step 5: Solve for x
    x = 260,179,770.31/18,997.44
  6. Step 6: Final answer
    x = 13,695.52

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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.