Home / 13,418.05-20,121.46-5,093.48

Finding the Fourth Proportional to 13,418.05, 20,121.46 and 5,093.48

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Solution

The fourth proportional to 13,418.05, 20,121.46 and 5,093.48 is: 7,638.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.05 : 20,121.46 = 5,093.48 : x
  2. Step 2: Convert to fraction form
    13,418.05/20,121.46 = 5,093.48/x
  3. Step 3: Cross multiply
    13,418.05x = 20,121.46 × 5,093.48
  4. Step 4: Simplify right side
    13,418.05x = 102,488,128.01
  5. Step 5: Solve for x
    x = 102,488,128.01/13,418.05
  6. Step 6: Final answer
    x = 7,638.08

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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.