Home / 18,536.05-27,790.87-8,669.95

Finding the Fourth Proportional to 18,536.05, 27,790.87 and 8,669.95

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Solution

The fourth proportional to 18,536.05, 27,790.87 and 8,669.95 is: 12,998.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,536.05 : 27,790.87 = 8,669.95 : x
  2. Step 2: Convert to fraction form
    18,536.05/27,790.87 = 8,669.95/x
  3. Step 3: Cross multiply
    18,536.05x = 27,790.87 × 8,669.95
  4. Step 4: Simplify right side
    18,536.05x = 240,945,431.68
  5. Step 5: Solve for x
    x = 240,945,431.68/18,536.05
  6. Step 6: Final answer
    x = 12,998.75

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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.