Home / 8,105.63-12,158.44-1,949.63

Finding the Fourth Proportional to 8,105.63, 12,158.44 and 1,949.63

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Solution

The fourth proportional to 8,105.63, 12,158.44 and 1,949.63 is: 2,924.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105.63 : 12,158.44 = 1,949.63 : x
  2. Step 2: Convert to fraction form
    8,105.63/12,158.44 = 1,949.63/x
  3. Step 3: Cross multiply
    8,105.63x = 12,158.44 × 1,949.63
  4. Step 4: Simplify right side
    8,105.63x = 23,704,393.71
  5. Step 5: Solve for x
    x = 23,704,393.71/8,105.63
  6. Step 6: Final answer
    x = 2,924.44

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Double scale
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Similar ratio
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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.