Home / 13,564.98-20,345.36-3,705.03

Finding the Fourth Proportional to 13,564.98, 20,345.36 and 3,705.03

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Solution

The fourth proportional to 13,564.98, 20,345.36 and 3,705.03 is: 5,556.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564.98 : 20,345.36 = 3,705.03 : x
  2. Step 2: Convert to fraction form
    13,564.98/20,345.36 = 3,705.03/x
  3. Step 3: Cross multiply
    13,564.98x = 20,345.36 × 3,705.03
  4. Step 4: Simplify right side
    13,564.98x = 75,380,150.64
  5. Step 5: Solve for x
    x = 75,380,150.64/13,564.98
  6. Step 6: Final answer
    x = 5,556.97

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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.