Home / 13,771.68-20,657.48-3,911.04

Finding the Fourth Proportional to 13,771.68, 20,657.48 and 3,911.04

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Solution

The fourth proportional to 13,771.68, 20,657.48 and 3,911.04 is: 5,866.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771.68 : 20,657.48 = 3,911.04 : x
  2. Step 2: Convert to fraction form
    13,771.68/20,657.48 = 3,911.04/x
  3. Step 3: Cross multiply
    13,771.68x = 20,657.48 × 3,911.04
  4. Step 4: Simplify right side
    13,771.68x = 80,792,230.58
  5. Step 5: Solve for x
    x = 80,792,230.58/13,771.68
  6. Step 6: Final answer
    x = 5,866.55

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Similar ratio
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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.