Home / 13,740.96-20,611.20-3,352.80

Finding the Fourth Proportional to 13,740.96, 20,611.20 and 3,352.80

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Solution

The fourth proportional to 13,740.96, 20,611.20 and 3,352.80 is: 5,029.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.96 : 20,611.20 = 3,352.80 : x
  2. Step 2: Convert to fraction form
    13,740.96/20,611.20 = 3,352.80/x
  3. Step 3: Cross multiply
    13,740.96x = 20,611.20 × 3,352.80
  4. Step 4: Simplify right side
    13,740.96x = 69,105,231.36
  5. Step 5: Solve for x
    x = 69,105,231.36/13,740.96
  6. Step 6: Final answer
    x = 5,029.14

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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.