Home / 19,183.45-28,765.53-11,180.79

Finding the Fourth Proportional to 19,183.45, 28,765.53 and 11,180.79

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Solution

The fourth proportional to 19,183.45, 28,765.53 and 11,180.79 is: 16,765.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,183.45 : 28,765.53 = 11,180.79 : x
  2. Step 2: Convert to fraction form
    19,183.45/28,765.53 = 11,180.79/x
  3. Step 3: Cross multiply
    19,183.45x = 28,765.53 × 11,180.79
  4. Step 4: Simplify right side
    19,183.45x = 321,621,294.26
  5. Step 5: Solve for x
    x = 321,621,294.26/19,183.45
  6. Step 6: Final answer
    x = 16,765.57

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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.