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Finding the Fourth Proportional to 8,453.77, 12,682.17 and 2,905.68

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Solution

The fourth proportional to 8,453.77, 12,682.17 and 2,905.68 is: 4,359.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.77 : 12,682.17 = 2,905.68 : x
  2. Step 2: Convert to fraction form
    8,453.77/12,682.17 = 2,905.68/x
  3. Step 3: Cross multiply
    8,453.77x = 12,682.17 × 2,905.68
  4. Step 4: Simplify right side
    8,453.77x = 36,850,327.73
  5. Step 5: Solve for x
    x = 36,850,327.73/8,453.77
  6. Step 6: Final answer
    x = 4,359.04

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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.