Home / 13,943.05-20,911.49-4,083.10

Finding the Fourth Proportional to 13,943.05, 20,911.49 and 4,083.10

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Solution

The fourth proportional to 13,943.05, 20,911.49 and 4,083.10 is: 6,123.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.05 : 20,911.49 = 4,083.10 : x
  2. Step 2: Convert to fraction form
    13,943.05/20,911.49 = 4,083.10/x
  3. Step 3: Cross multiply
    13,943.05x = 20,911.49 × 4,083.10
  4. Step 4: Simplify right side
    13,943.05x = 85,383,670.40
  5. Step 5: Solve for x
    x = 85,383,670.40/13,943.05
  6. Step 6: Final answer
    x = 6,123.75

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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.