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Finding the Fourth Proportional to 18,175.86, 27,252.05 and 8,684.28

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Solution

The fourth proportional to 18,175.86, 27,252.05 and 8,684.28 is: 13,020.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,175.86 : 27,252.05 = 8,684.28 : x
  2. Step 2: Convert to fraction form
    18,175.86/27,252.05 = 8,684.28/x
  3. Step 3: Cross multiply
    18,175.86x = 27,252.05 × 8,684.28
  4. Step 4: Simplify right side
    18,175.86x = 236,664,389.35
  5. Step 5: Solve for x
    x = 236,664,389.35/18,175.86
  6. Step 6: Final answer
    x = 13,020.81

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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.