Home / 13,821.97-20,736.04-5,502.36

Finding the Fourth Proportional to 13,821.97, 20,736.04 and 5,502.36

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Solution

The fourth proportional to 13,821.97, 20,736.04 and 5,502.36 is: 8,254.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.97 : 20,736.04 = 5,502.36 : x
  2. Step 2: Convert to fraction form
    13,821.97/20,736.04 = 5,502.36/x
  3. Step 3: Cross multiply
    13,821.97x = 20,736.04 × 5,502.36
  4. Step 4: Simplify right side
    13,821.97x = 114,097,157.05
  5. Step 5: Solve for x
    x = 114,097,157.05/13,821.97
  6. Step 6: Final answer
    x = 8,254.77

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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.