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Finding the Fourth Proportional to 18,604.46, 27,906.91 and 5,457.09

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Solution

The fourth proportional to 18,604.46, 27,906.91 and 5,457.09 is: 8,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,604.46 : 27,906.91 = 5,457.09 : x
  2. Step 2: Convert to fraction form
    18,604.46/27,906.91 = 5,457.09/x
  3. Step 3: Cross multiply
    18,604.46x = 27,906.91 × 5,457.09
  4. Step 4: Simplify right side
    18,604.46x = 152,290,519.49
  5. Step 5: Solve for x
    x = 152,290,519.49/18,604.46
  6. Step 6: Final answer
    x = 8,185.70

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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.