Home / 13,821.60-20,732.49-5,052.90

Finding the Fourth Proportional to 13,821.60, 20,732.49 and 5,052.90

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Solution

The fourth proportional to 13,821.60, 20,732.49 and 5,052.90 is: 7,579.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.60 : 20,732.49 = 5,052.90 : x
  2. Step 2: Convert to fraction form
    13,821.60/20,732.49 = 5,052.90/x
  3. Step 3: Cross multiply
    13,821.60x = 20,732.49 × 5,052.90
  4. Step 4: Simplify right side
    13,821.60x = 104,759,198.72
  5. Step 5: Solve for x
    x = 104,759,198.72/13,821.60
  6. Step 6: Final answer
    x = 7,579.38

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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.