Home / 12,540.38-18,834.01-11,039.94

Finding the Fourth Proportional to 12,540.38, 18,834.01 and 11,039.94

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Solution

The fourth proportional to 12,540.38, 18,834.01 and 11,039.94 is: 16,580.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.38 : 18,834.01 = 11,039.94 : x
  2. Step 2: Convert to fraction form
    12,540.38/18,834.01 = 11,039.94/x
  3. Step 3: Cross multiply
    12,540.38x = 18,834.01 × 11,039.94
  4. Step 4: Simplify right side
    12,540.38x = 207,926,340.36
  5. Step 5: Solve for x
    x = 207,926,340.36/12,540.38
  6. Step 6: Final answer
    x = 16,580.55

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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.