Home / 8,105.78-12,159.35-2,262.46

Finding the Fourth Proportional to 8,105.78, 12,159.35 and 2,262.46

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Solution

The fourth proportional to 8,105.78, 12,159.35 and 2,262.46 is: 3,393.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105.78 : 12,159.35 = 2,262.46 : x
  2. Step 2: Convert to fraction form
    8,105.78/12,159.35 = 2,262.46/x
  3. Step 3: Cross multiply
    8,105.78x = 12,159.35 × 2,262.46
  4. Step 4: Simplify right side
    8,105.78x = 27,510,043.00
  5. Step 5: Solve for x
    x = 27,510,043.00/8,105.78
  6. Step 6: Final answer
    x = 3,393.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.