Home / 13,841.82-20,749.94-5,519.81

Finding the Fourth Proportional to 13,841.82, 20,749.94 and 5,519.81

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Solution

The fourth proportional to 13,841.82, 20,749.94 and 5,519.81 is: 8,274.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.82 : 20,749.94 = 5,519.81 : x
  2. Step 2: Convert to fraction form
    13,841.82/20,749.94 = 5,519.81/x
  3. Step 3: Cross multiply
    13,841.82x = 20,749.94 × 5,519.81
  4. Step 4: Simplify right side
    13,841.82x = 114,535,771.29
  5. Step 5: Solve for x
    x = 114,535,771.29/13,841.82
  6. Step 6: Final answer
    x = 8,274.62

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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.