Home / 13,380.80-20,067.36-5,588

Finding the Fourth Proportional to 13,380.80, 20,067.36 and 5,588

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Solution

The fourth proportional to 13,380.80, 20,067.36 and 5,588 is: 8,380.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.80 : 20,067.36 = 5,588 : x
  2. Step 2: Convert to fraction form
    13,380.80/20,067.36 = 5,588/x
  3. Step 3: Cross multiply
    13,380.80x = 20,067.36 × 5,588
  4. Step 4: Simplify right side
    13,380.80x = 112,136,407.68
  5. Step 5: Solve for x
    x = 112,136,407.68/13,380.80
  6. Step 6: Final answer
    x = 8,380.40

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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.