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Finding the Fourth Proportional to 18,110.91, 27,170.46 and 6,424.11

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Solution

The fourth proportional to 18,110.91, 27,170.46 and 6,424.11 is: 9,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,110.91 : 27,170.46 = 6,424.11 : x
  2. Step 2: Convert to fraction form
    18,110.91/27,170.46 = 6,424.11/x
  3. Step 3: Cross multiply
    18,110.91x = 27,170.46 × 6,424.11
  4. Step 4: Simplify right side
    18,110.91x = 174,546,023.79
  5. Step 5: Solve for x
    x = 174,546,023.79/18,110.91
  6. Step 6: Final answer
    x = 9,637.62

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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.