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Finding the Fourth Proportional to 8,627.96, 12,926.28 and 3,951.87

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Solution

The fourth proportional to 8,627.96, 12,926.28 and 3,951.87 is: 5,920.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.96 : 12,926.28 = 3,951.87 : x
  2. Step 2: Convert to fraction form
    8,627.96/12,926.28 = 3,951.87/x
  3. Step 3: Cross multiply
    8,627.96x = 12,926.28 × 3,951.87
  4. Step 4: Simplify right side
    8,627.96x = 51,082,978.14
  5. Step 5: Solve for x
    x = 51,082,978.14/8,627.96
  6. Step 6: Final answer
    x = 5,920.64

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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.