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Finding the Fourth Proportional to 8,453.57, 12,682.43 and 2,906.99

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Solution

The fourth proportional to 8,453.57, 12,682.43 and 2,906.99 is: 4,361.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.57 : 12,682.43 = 2,906.99 : x
  2. Step 2: Convert to fraction form
    8,453.57/12,682.43 = 2,906.99/x
  3. Step 3: Cross multiply
    8,453.57x = 12,682.43 × 2,906.99
  4. Step 4: Simplify right side
    8,453.57x = 36,867,619.24
  5. Step 5: Solve for x
    x = 36,867,619.24/8,453.57
  6. Step 6: Final answer
    x = 4,361.19

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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.