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Finding the Fourth Proportional to 8,305.88, 12,455.87 and 2,757.74

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Solution

The fourth proportional to 8,305.88, 12,455.87 and 2,757.74 is: 4,135.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305.88 : 12,455.87 = 2,757.74 : x
  2. Step 2: Convert to fraction form
    8,305.88/12,455.87 = 2,757.74/x
  3. Step 3: Cross multiply
    8,305.88x = 12,455.87 × 2,757.74
  4. Step 4: Simplify right side
    8,305.88x = 34,349,974.87
  5. Step 5: Solve for x
    x = 34,349,974.87/8,305.88
  6. Step 6: Final answer
    x = 4,135.62

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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.