Home / 18,608.45-27,914.34-5,281.56

Finding the Fourth Proportional to 18,608.45, 27,914.34 and 5,281.56

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Solution

The fourth proportional to 18,608.45, 27,914.34 and 5,281.56 is: 7,922.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608.45 : 27,914.34 = 5,281.56 : x
  2. Step 2: Convert to fraction form
    18,608.45/27,914.34 = 5,281.56/x
  3. Step 3: Cross multiply
    18,608.45x = 27,914.34 × 5,281.56
  4. Step 4: Simplify right side
    18,608.45x = 147,431,261.57
  5. Step 5: Solve for x
    x = 147,431,261.57/18,608.45
  6. Step 6: Final answer
    x = 7,922.81

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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.