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Finding the Fourth Proportional to 12,168.03, 16,792.13 and 6,861.81

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Solution

The fourth proportional to 12,168.03, 16,792.13 and 6,861.81 is: 9,469.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.03 : 16,792.13 = 6,861.81 : x
  2. Step 2: Convert to fraction form
    12,168.03/16,792.13 = 6,861.81/x
  3. Step 3: Cross multiply
    12,168.03x = 16,792.13 × 6,861.81
  4. Step 4: Simplify right side
    12,168.03x = 115,224,405.56
  5. Step 5: Solve for x
    x = 115,224,405.56/12,168.03
  6. Step 6: Final answer
    x = 9,469.44

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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.