Home / 7,719.88-10,653.52-4,183.16

Finding the Fourth Proportional to 7,719.88, 10,653.52 and 4,183.16

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Solution

The fourth proportional to 7,719.88, 10,653.52 and 4,183.16 is: 5,772.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.88 : 10,653.52 = 4,183.16 : x
  2. Step 2: Convert to fraction form
    7,719.88/10,653.52 = 4,183.16/x
  3. Step 3: Cross multiply
    7,719.88x = 10,653.52 × 4,183.16
  4. Step 4: Simplify right side
    7,719.88x = 44,565,378.72
  5. Step 5: Solve for x
    x = 44,565,378.72/7,719.88
  6. Step 6: Final answer
    x = 5,772.81

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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.