Home / 18,604.03-27,910.59-8,731.81

Finding the Fourth Proportional to 18,604.03, 27,910.59 and 8,731.81

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Solution

The fourth proportional to 18,604.03, 27,910.59 and 8,731.81 is: 13,099.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,604.03 : 27,910.59 = 8,731.81 : x
  2. Step 2: Convert to fraction form
    18,604.03/27,910.59 = 8,731.81/x
  3. Step 3: Cross multiply
    18,604.03x = 27,910.59 × 8,731.81
  4. Step 4: Simplify right side
    18,604.03x = 243,709,968.87
  5. Step 5: Solve for x
    x = 243,709,968.87/18,604.03
  6. Step 6: Final answer
    x = 13,099.85

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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.