Home / 8,786.19-13,178.47-2,942.85

Finding the Fourth Proportional to 8,786.19, 13,178.47 and 2,942.85

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Solution

The fourth proportional to 8,786.19, 13,178.47 and 2,942.85 is: 4,414.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.19 : 13,178.47 = 2,942.85 : x
  2. Step 2: Convert to fraction form
    8,786.19/13,178.47 = 2,942.85/x
  3. Step 3: Cross multiply
    8,786.19x = 13,178.47 × 2,942.85
  4. Step 4: Simplify right side
    8,786.19x = 38,782,260.44
  5. Step 5: Solve for x
    x = 38,782,260.44/8,786.19
  6. Step 6: Final answer
    x = 4,414.00

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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.