Home / 13,486.80-20,241.36-5,700.96

Finding the Fourth Proportional to 13,486.80, 20,241.36 and 5,700.96

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Solution

The fourth proportional to 13,486.80, 20,241.36 and 5,700.96 is: 8,556.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.80 : 20,241.36 = 5,700.96 : x
  2. Step 2: Convert to fraction form
    13,486.80/20,241.36 = 5,700.96/x
  3. Step 3: Cross multiply
    13,486.80x = 20,241.36 × 5,700.96
  4. Step 4: Simplify right side
    13,486.80x = 115,395,183.71
  5. Step 5: Solve for x
    x = 115,395,183.71/13,486.80
  6. Step 6: Final answer
    x = 8,556.16

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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.