Home / 18,450.54-25,450.38-13,147.07

Finding the Fourth Proportional to 18,450.54, 25,450.38 and 13,147.07

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Solution

The fourth proportional to 18,450.54, 25,450.38 and 13,147.07 is: 18,134.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,450.54 : 25,450.38 = 13,147.07 : x
  2. Step 2: Convert to fraction form
    18,450.54/25,450.38 = 13,147.07/x
  3. Step 3: Cross multiply
    18,450.54x = 25,450.38 × 13,147.07
  4. Step 4: Simplify right side
    18,450.54x = 334,597,927.39
  5. Step 5: Solve for x
    x = 334,597,927.39/18,450.54
  6. Step 6: Final answer
    x = 18,134.86

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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.