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Finding the Fourth Proportional to 8,163.72, 11,265.48 and 4,626.72

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Solution

The fourth proportional to 8,163.72, 11,265.48 and 4,626.72 is: 6,384.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163.72 : 11,265.48 = 4,626.72 : x
  2. Step 2: Convert to fraction form
    8,163.72/11,265.48 = 4,626.72/x
  3. Step 3: Cross multiply
    8,163.72x = 11,265.48 × 4,626.72
  4. Step 4: Simplify right side
    8,163.72x = 52,122,221.63
  5. Step 5: Solve for x
    x = 52,122,221.63/8,163.72
  6. Step 6: Final answer
    x = 6,384.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.