Home / 18,611.04-27,919.56-6,765.88

Finding the Fourth Proportional to 18,611.04, 27,919.56 and 6,765.88

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Solution

The fourth proportional to 18,611.04, 27,919.56 and 6,765.88 is: 10,149.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611.04 : 27,919.56 = 6,765.88 : x
  2. Step 2: Convert to fraction form
    18,611.04/27,919.56 = 6,765.88/x
  3. Step 3: Cross multiply
    18,611.04x = 27,919.56 × 6,765.88
  4. Step 4: Simplify right side
    18,611.04x = 188,900,392.61
  5. Step 5: Solve for x
    x = 188,900,392.61/18,611.04
  6. Step 6: Final answer
    x = 10,149.91

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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.