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Finding the Fourth Proportional to 8,736.99, 13,105.41 and 2,163.16

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Solution

The fourth proportional to 8,736.99, 13,105.41 and 2,163.16 is: 3,244.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.99 : 13,105.41 = 2,163.16 : x
  2. Step 2: Convert to fraction form
    8,736.99/13,105.41 = 2,163.16/x
  3. Step 3: Cross multiply
    8,736.99x = 13,105.41 × 2,163.16
  4. Step 4: Simplify right side
    8,736.99x = 28,349,098.70
  5. Step 5: Solve for x
    x = 28,349,098.70/8,736.99
  6. Step 6: Final answer
    x = 3,244.72

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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.