Home / 7,719.78-10,653.27-4,183.05

Finding the Fourth Proportional to 7,719.78, 10,653.27 and 4,183.05

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Solution

The fourth proportional to 7,719.78, 10,653.27 and 4,183.05 is: 5,772.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.78 : 10,653.27 = 4,183.05 : x
  2. Step 2: Convert to fraction form
    7,719.78/10,653.27 = 4,183.05/x
  3. Step 3: Cross multiply
    7,719.78x = 10,653.27 × 4,183.05
  4. Step 4: Simplify right side
    7,719.78x = 44,563,161.07
  5. Step 5: Solve for x
    x = 44,563,161.07/7,719.78
  6. Step 6: Final answer
    x = 5,772.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.