Home / 13,404.59-20,107.85-3,543.75

Finding the Fourth Proportional to 13,404.59, 20,107.85 and 3,543.75

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Solution

The fourth proportional to 13,404.59, 20,107.85 and 3,543.75 is: 5,315.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,404.59 : 20,107.85 = 3,543.75 : x
  2. Step 2: Convert to fraction form
    13,404.59/20,107.85 = 3,543.75/x
  3. Step 3: Cross multiply
    13,404.59x = 20,107.85 × 3,543.75
  4. Step 4: Simplify right side
    13,404.59x = 71,257,175.72
  5. Step 5: Solve for x
    x = 71,257,175.72/13,404.59
  6. Step 6: Final answer
    x = 5,315.88

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1.5x scale

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.