Home / 18,711.26-28,072.98-12,496.52

Finding the Fourth Proportional to 18,711.26, 28,072.98 and 12,496.52

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Solution

The fourth proportional to 18,711.26, 28,072.98 and 12,496.52 is: 18,748.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.26 : 28,072.98 = 12,496.52 : x
  2. Step 2: Convert to fraction form
    18,711.26/28,072.98 = 12,496.52/x
  3. Step 3: Cross multiply
    18,711.26x = 28,072.98 × 12,496.52
  4. Step 4: Simplify right side
    18,711.26x = 350,814,556.03
  5. Step 5: Solve for x
    x = 350,814,556.03/18,711.26
  6. Step 6: Final answer
    x = 18,748.85

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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.