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Finding the Fourth Proportional to 18,217.88, 27,327.72 and 8,352.68

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Solution

The fourth proportional to 18,217.88, 27,327.72 and 8,352.68 is: 12,529.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.88 : 27,327.72 = 8,352.68 : x
  2. Step 2: Convert to fraction form
    18,217.88/27,327.72 = 8,352.68/x
  3. Step 3: Cross multiply
    18,217.88x = 27,327.72 × 8,352.68
  4. Step 4: Simplify right side
    18,217.88x = 228,259,700.29
  5. Step 5: Solve for x
    x = 228,259,700.29/18,217.88
  6. Step 6: Final answer
    x = 12,529.43

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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.