Home / 8,256.35-12,379.02-2,707.78

Finding the Fourth Proportional to 8,256.35, 12,379.02 and 2,707.78

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Solution

The fourth proportional to 8,256.35, 12,379.02 and 2,707.78 is: 4,059.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256.35 : 12,379.02 = 2,707.78 : x
  2. Step 2: Convert to fraction form
    8,256.35/12,379.02 = 2,707.78/x
  3. Step 3: Cross multiply
    8,256.35x = 12,379.02 × 2,707.78
  4. Step 4: Simplify right side
    8,256.35x = 33,519,662.78
  5. Step 5: Solve for x
    x = 33,519,662.78/8,256.35
  6. Step 6: Final answer
    x = 4,059.87

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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.