Home / 13,763.44-20,638.64-5,333.88

Finding the Fourth Proportional to 13,763.44, 20,638.64 and 5,333.88

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Solution

The fourth proportional to 13,763.44, 20,638.64 and 5,333.88 is: 7,998.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.44 : 20,638.64 = 5,333.88 : x
  2. Step 2: Convert to fraction form
    13,763.44/20,638.64 = 5,333.88/x
  3. Step 3: Cross multiply
    13,763.44x = 20,638.64 × 5,333.88
  4. Step 4: Simplify right side
    13,763.44x = 110,084,029.12
  5. Step 5: Solve for x
    x = 110,084,029.12/13,763.44
  6. Step 6: Final answer
    x = 7,998.29

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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.