Home / 13,757.54-20,623.68-4,990.34

Finding the Fourth Proportional to 13,757.54, 20,623.68 and 4,990.34

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Solution

The fourth proportional to 13,757.54, 20,623.68 and 4,990.34 is: 7,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.54 : 20,623.68 = 4,990.34 : x
  2. Step 2: Convert to fraction form
    13,757.54/20,623.68 = 4,990.34/x
  3. Step 3: Cross multiply
    13,757.54x = 20,623.68 × 4,990.34
  4. Step 4: Simplify right side
    13,757.54x = 102,919,175.25
  5. Step 5: Solve for x
    x = 102,919,175.25/13,757.54
  6. Step 6: Final answer
    x = 7,480.93

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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.