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Finding the Fourth Proportional to 18,604.55, 27,906.98 and 5,457.14

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Solution

The fourth proportional to 18,604.55, 27,906.98 and 5,457.14 is: 8,185.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,604.55 : 27,906.98 = 5,457.14 : x
  2. Step 2: Convert to fraction form
    18,604.55/27,906.98 = 5,457.14/x
  3. Step 3: Cross multiply
    18,604.55x = 27,906.98 × 5,457.14
  4. Step 4: Simplify right side
    18,604.55x = 152,292,296.84
  5. Step 5: Solve for x
    x = 152,292,296.84/18,604.55
  6. Step 6: Final answer
    x = 8,185.76

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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.