Home / 18,481.38-25,504.31-9,983.50

Finding the Fourth Proportional to 18,481.38, 25,504.31 and 9,983.50

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Solution

The fourth proportional to 18,481.38, 25,504.31 and 9,983.50 is: 13,777.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.38 : 25,504.31 = 9,983.50 : x
  2. Step 2: Convert to fraction form
    18,481.38/25,504.31 = 9,983.50/x
  3. Step 3: Cross multiply
    18,481.38x = 25,504.31 × 9,983.50
  4. Step 4: Simplify right side
    18,481.38x = 254,622,278.89
  5. Step 5: Solve for x
    x = 254,622,278.89/18,481.38
  6. Step 6: Final answer
    x = 13,777.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.