Home / 13,611.15-20,416.68-3,750.48

Finding the Fourth Proportional to 13,611.15, 20,416.68 and 3,750.48

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Solution

The fourth proportional to 13,611.15, 20,416.68 and 3,750.48 is: 5,625.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.15 : 20,416.68 = 3,750.48 : x
  2. Step 2: Convert to fraction form
    13,611.15/20,416.68 = 3,750.48/x
  3. Step 3: Cross multiply
    13,611.15x = 20,416.68 × 3,750.48
  4. Step 4: Simplify right side
    13,611.15x = 76,572,350.01
  5. Step 5: Solve for x
    x = 76,572,350.01/13,611.15
  6. Step 6: Final answer
    x = 5,625.71

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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.