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Finding the Fourth Proportional to 8,588.97, 12,891.78 and 4,149.77

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Solution

The fourth proportional to 8,588.97, 12,891.78 and 4,149.77 is: 6,228.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,588.97 : 12,891.78 = 4,149.77 : x
  2. Step 2: Convert to fraction form
    8,588.97/12,891.78 = 4,149.77/x
  3. Step 3: Cross multiply
    8,588.97x = 12,891.78 × 4,149.77
  4. Step 4: Simplify right side
    8,588.97x = 53,497,857.43
  5. Step 5: Solve for x
    x = 53,497,857.43/8,588.97
  6. Step 6: Final answer
    x = 6,228.67

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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.