Home / 13,611.22-20,377.18-10,116.70

Finding the Fourth Proportional to 13,611.22, 20,377.18 and 10,116.70

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Solution

The fourth proportional to 13,611.22, 20,377.18 and 10,116.70 is: 15,145.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.22 : 20,377.18 = 10,116.70 : x
  2. Step 2: Convert to fraction form
    13,611.22/20,377.18 = 10,116.70/x
  3. Step 3: Cross multiply
    13,611.22x = 20,377.18 × 10,116.70
  4. Step 4: Simplify right side
    13,611.22x = 206,149,816.91
  5. Step 5: Solve for x
    x = 206,149,816.91/13,611.22
  6. Step 6: Final answer
    x = 15,145.58

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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.