Home / 6,747.76-10,121.80-1,817.84

Finding the Fourth Proportional to 6,747.76, 10,121.80 and 1,817.84

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Solution

The fourth proportional to 6,747.76, 10,121.80 and 1,817.84 is: 2,726.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,747.76 : 10,121.80 = 1,817.84 : x
  2. Step 2: Convert to fraction form
    6,747.76/10,121.80 = 1,817.84/x
  3. Step 3: Cross multiply
    6,747.76x = 10,121.80 × 1,817.84
  4. Step 4: Simplify right side
    6,747.76x = 18,399,812.91
  5. Step 5: Solve for x
    x = 18,399,812.91/6,747.76
  6. Step 6: Final answer
    x = 2,726.80

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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.