Home / 13,183.78-19,775.56-4,418.64

Finding the Fourth Proportional to 13,183.78, 19,775.56 and 4,418.64

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Solution

The fourth proportional to 13,183.78, 19,775.56 and 4,418.64 is: 6,627.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.78 : 19,775.56 = 4,418.64 : x
  2. Step 2: Convert to fraction form
    13,183.78/19,775.56 = 4,418.64/x
  3. Step 3: Cross multiply
    13,183.78x = 19,775.56 × 4,418.64
  4. Step 4: Simplify right side
    13,183.78x = 87,381,080.44
  5. Step 5: Solve for x
    x = 87,381,080.44/13,183.78
  6. Step 6: Final answer
    x = 6,627.92

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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.