Home / 18,132.56-27,198.84-4,986.32

Finding the Fourth Proportional to 18,132.56, 27,198.84 and 4,986.32

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Solution

The fourth proportional to 18,132.56, 27,198.84 and 4,986.32 is: 7,479.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,132.56 : 27,198.84 = 4,986.32 : x
  2. Step 2: Convert to fraction form
    18,132.56/27,198.84 = 4,986.32/x
  3. Step 3: Cross multiply
    18,132.56x = 27,198.84 × 4,986.32
  4. Step 4: Simplify right side
    18,132.56x = 135,622,119.87
  5. Step 5: Solve for x
    x = 135,622,119.87/18,132.56
  6. Step 6: Final answer
    x = 7,479.48

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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.