Home / 8,213.62-12,319.28-2,667.02

Finding the Fourth Proportional to 8,213.62, 12,319.28 and 2,667.02

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Solution

The fourth proportional to 8,213.62, 12,319.28 and 2,667.02 is: 4,000.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,213.62 : 12,319.28 = 2,667.02 : x
  2. Step 2: Convert to fraction form
    8,213.62/12,319.28 = 2,667.02/x
  3. Step 3: Cross multiply
    8,213.62x = 12,319.28 × 2,667.02
  4. Step 4: Simplify right side
    8,213.62x = 32,855,766.15
  5. Step 5: Solve for x
    x = 32,855,766.15/8,213.62
  6. Step 6: Final answer
    x = 4,000.16

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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.