Home / 18,840.96-28,260.72-7,744.56

Finding the Fourth Proportional to 18,840.96, 28,260.72 and 7,744.56

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Solution

The fourth proportional to 18,840.96, 28,260.72 and 7,744.56 is: 11,616.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.96 : 28,260.72 = 7,744.56 : x
  2. Step 2: Convert to fraction form
    18,840.96/28,260.72 = 7,744.56/x
  3. Step 3: Cross multiply
    18,840.96x = 28,260.72 × 7,744.56
  4. Step 4: Simplify right side
    18,840.96x = 218,866,841.68
  5. Step 5: Solve for x
    x = 218,866,841.68/18,840.96
  6. Step 6: Final answer
    x = 11,616.54

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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.