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Finding the Fourth Proportional to 8,015.79, 12,013.21 and 4,310.04

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Solution

The fourth proportional to 8,015.79, 12,013.21 and 4,310.04 is: 6,459.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,015.79 : 12,013.21 = 4,310.04 : x
  2. Step 2: Convert to fraction form
    8,015.79/12,013.21 = 4,310.04/x
  3. Step 3: Cross multiply
    8,015.79x = 12,013.21 × 4,310.04
  4. Step 4: Simplify right side
    8,015.79x = 51,777,404.85
  5. Step 5: Solve for x
    x = 51,777,404.85/8,015.79
  6. Step 6: Final answer
    x = 6,459.43

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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.