Home / 10,611.68-15,921.88-5,343.85

Finding the Fourth Proportional to 10,611.68, 15,921.88 and 5,343.85

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Solution

The fourth proportional to 10,611.68, 15,921.88 and 5,343.85 is: 8,017.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.68 : 15,921.88 = 5,343.85 : x
  2. Step 2: Convert to fraction form
    10,611.68/15,921.88 = 5,343.85/x
  3. Step 3: Cross multiply
    10,611.68x = 15,921.88 × 5,343.85
  4. Step 4: Simplify right side
    10,611.68x = 85,084,138.44
  5. Step 5: Solve for x
    x = 85,084,138.44/10,611.68
  6. Step 6: Final answer
    x = 8,017.97

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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.