Home / 13,828.50-20,736.26-5,057.28

Finding the Fourth Proportional to 13,828.50, 20,736.26 and 5,057.28

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Solution

The fourth proportional to 13,828.50, 20,736.26 and 5,057.28 is: 7,583.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.50 : 20,736.26 = 5,057.28 : x
  2. Step 2: Convert to fraction form
    13,828.50/20,736.26 = 5,057.28/x
  3. Step 3: Cross multiply
    13,828.50x = 20,736.26 × 5,057.28
  4. Step 4: Simplify right side
    13,828.50x = 104,869,072.97
  5. Step 5: Solve for x
    x = 104,869,072.97/13,828.50
  6. Step 6: Final answer
    x = 7,583.55

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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.