Home / 13,401.54-20,105.01-5,081.36

Finding the Fourth Proportional to 13,401.54, 20,105.01 and 5,081.36

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Solution

The fourth proportional to 13,401.54, 20,105.01 and 5,081.36 is: 7,623.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.54 : 20,105.01 = 5,081.36 : x
  2. Step 2: Convert to fraction form
    13,401.54/20,105.01 = 5,081.36/x
  3. Step 3: Cross multiply
    13,401.54x = 20,105.01 × 5,081.36
  4. Step 4: Simplify right side
    13,401.54x = 102,160,693.09
  5. Step 5: Solve for x
    x = 102,160,693.09/13,401.54
  6. Step 6: Final answer
    x = 7,623.06

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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.