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Finding the Fourth Proportional to 8,271.80, 12,396.90 and 3,337.40

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Solution

The fourth proportional to 8,271.80, 12,396.90 and 3,337.40 is: 5,001.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,271.80 : 12,396.90 = 3,337.40 : x
  2. Step 2: Convert to fraction form
    8,271.80/12,396.90 = 3,337.40/x
  3. Step 3: Cross multiply
    8,271.80x = 12,396.90 × 3,337.40
  4. Step 4: Simplify right side
    8,271.80x = 41,373,414.06
  5. Step 5: Solve for x
    x = 41,373,414.06/8,271.80
  6. Step 6: Final answer
    x = 5,001.74

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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.