Home / 18,840.82-28,268.16-7,744.54

Finding the Fourth Proportional to 18,840.82, 28,268.16 and 7,744.54

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Solution

The fourth proportional to 18,840.82, 28,268.16 and 7,744.54 is: 11,619.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.82 : 28,268.16 = 7,744.54 : x
  2. Step 2: Convert to fraction form
    18,840.82/28,268.16 = 7,744.54/x
  3. Step 3: Cross multiply
    18,840.82x = 28,268.16 × 7,744.54
  4. Step 4: Simplify right side
    18,840.82x = 218,923,895.85
  5. Step 5: Solve for x
    x = 218,923,895.85/18,840.82
  6. Step 6: Final answer
    x = 11,619.66

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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.