Home / 8,115.30-12,173.01-2,271.96

Finding the Fourth Proportional to 8,115.30, 12,173.01 and 2,271.96

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Solution

The fourth proportional to 8,115.30, 12,173.01 and 2,271.96 is: 3,407.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.30 : 12,173.01 = 2,271.96 : x
  2. Step 2: Convert to fraction form
    8,115.30/12,173.01 = 2,271.96/x
  3. Step 3: Cross multiply
    8,115.30x = 12,173.01 × 2,271.96
  4. Step 4: Simplify right side
    8,115.30x = 27,656,591.80
  5. Step 5: Solve for x
    x = 27,656,591.80/8,115.30
  6. Step 6: Final answer
    x = 3,407.96

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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.