Home / 8,116.38-12,173.22-2,271.78

Finding the Fourth Proportional to 8,116.38, 12,173.22 and 2,271.78

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Solution

The fourth proportional to 8,116.38, 12,173.22 and 2,271.78 is: 3,407.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.38 : 12,173.22 = 2,271.78 : x
  2. Step 2: Convert to fraction form
    8,116.38/12,173.22 = 2,271.78/x
  3. Step 3: Cross multiply
    8,116.38x = 12,173.22 × 2,271.78
  4. Step 4: Simplify right side
    8,116.38x = 27,654,877.73
  5. Step 5: Solve for x
    x = 27,654,877.73/8,116.38
  6. Step 6: Final answer
    x = 3,407.29

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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.