Home / 13,828.62-20,736.44-5,057.40

Finding the Fourth Proportional to 13,828.62, 20,736.44 and 5,057.40

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Solution

The fourth proportional to 13,828.62, 20,736.44 and 5,057.40 is: 7,583.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.62 : 20,736.44 = 5,057.40 : x
  2. Step 2: Convert to fraction form
    13,828.62/20,736.44 = 5,057.40/x
  3. Step 3: Cross multiply
    13,828.62x = 20,736.44 × 5,057.40
  4. Step 4: Simplify right side
    13,828.62x = 104,872,380.62
  5. Step 5: Solve for x
    x = 104,872,380.62/13,828.62
  6. Step 6: Final answer
    x = 7,583.72

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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.