Home / 13,039.26-19,536.21-8,112.44

Finding the Fourth Proportional to 13,039.26, 19,536.21 and 8,112.44

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Solution

The fourth proportional to 13,039.26, 19,536.21 and 8,112.44 is: 12,154.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.26 : 19,536.21 = 8,112.44 : x
  2. Step 2: Convert to fraction form
    13,039.26/19,536.21 = 8,112.44/x
  3. Step 3: Cross multiply
    13,039.26x = 19,536.21 × 8,112.44
  4. Step 4: Simplify right side
    13,039.26x = 158,486,233.77
  5. Step 5: Solve for x
    x = 158,486,233.77/13,039.26
  6. Step 6: Final answer
    x = 12,154.54

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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.