Home / 13,611.20-20,417.96-3,750.48

Finding the Fourth Proportional to 13,611.20, 20,417.96 and 3,750.48

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Solution

The fourth proportional to 13,611.20, 20,417.96 and 3,750.48 is: 5,626.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.20 : 20,417.96 = 3,750.48 : x
  2. Step 2: Convert to fraction form
    13,611.20/20,417.96 = 3,750.48/x
  3. Step 3: Cross multiply
    13,611.20x = 20,417.96 × 3,750.48
  4. Step 4: Simplify right side
    13,611.20x = 76,577,131.87
  5. Step 5: Solve for x
    x = 76,577,131.87/13,611.20
  6. Step 6: Final answer
    x = 5,626.04

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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.