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Finding the Fourth Proportional to 8,857.44, 12,198.06 and 8,830.74

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Solution

The fourth proportional to 8,857.44, 12,198.06 and 8,830.74 is: 12,161.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,857.44 : 12,198.06 = 8,830.74 : x
  2. Step 2: Convert to fraction form
    8,857.44/12,198.06 = 8,830.74/x
  3. Step 3: Cross multiply
    8,857.44x = 12,198.06 × 8,830.74
  4. Step 4: Simplify right side
    8,857.44x = 107,717,896.36
  5. Step 5: Solve for x
    x = 107,717,896.36/8,857.44
  6. Step 6: Final answer
    x = 12,161.29

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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.