Home / 18,863.64-28,296.41-7,177.77

Finding the Fourth Proportional to 18,863.64, 28,296.41 and 7,177.77

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Solution

The fourth proportional to 18,863.64, 28,296.41 and 7,177.77 is: 10,767.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863.64 : 28,296.41 = 7,177.77 : x
  2. Step 2: Convert to fraction form
    18,863.64/28,296.41 = 7,177.77/x
  3. Step 3: Cross multiply
    18,863.64x = 28,296.41 × 7,177.77
  4. Step 4: Simplify right side
    18,863.64x = 203,105,086.92
  5. Step 5: Solve for x
    x = 203,105,086.92/18,863.64
  6. Step 6: Final answer
    x = 10,767.01

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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.