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Finding the Fourth Proportional to 14,450.12, 21,704.32 and 8,618.12

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Solution

The fourth proportional to 14,450.12, 21,704.32 and 8,618.12 is: 12,944.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,450.12 : 21,704.32 = 8,618.12 : x
  2. Step 2: Convert to fraction form
    14,450.12/21,704.32 = 8,618.12/x
  3. Step 3: Cross multiply
    14,450.12x = 21,704.32 × 8,618.12
  4. Step 4: Simplify right side
    14,450.12x = 187,050,434.28
  5. Step 5: Solve for x
    x = 187,050,434.28/14,450.12
  6. Step 6: Final answer
    x = 12,944.56

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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.