Home / 13,844.92-20,778.31-5,082.34

Finding the Fourth Proportional to 13,844.92, 20,778.31 and 5,082.34

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Solution

The fourth proportional to 13,844.92, 20,778.31 and 5,082.34 is: 7,627.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,844.92 : 20,778.31 = 5,082.34 : x
  2. Step 2: Convert to fraction form
    13,844.92/20,778.31 = 5,082.34/x
  3. Step 3: Cross multiply
    13,844.92x = 20,778.31 × 5,082.34
  4. Step 4: Simplify right side
    13,844.92x = 105,602,371.39
  5. Step 5: Solve for x
    x = 105,602,371.39/13,844.92
  6. Step 6: Final answer
    x = 7,627.52

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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.