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Finding the Fourth Proportional to 18,162.66, 27,212.94 and 8,807.16

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Solution

The fourth proportional to 18,162.66, 27,212.94 and 8,807.16 is: 13,195.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,162.66 : 27,212.94 = 8,807.16 : x
  2. Step 2: Convert to fraction form
    18,162.66/27,212.94 = 8,807.16/x
  3. Step 3: Cross multiply
    18,162.66x = 27,212.94 × 8,807.16
  4. Step 4: Simplify right side
    18,162.66x = 239,668,716.65
  5. Step 5: Solve for x
    x = 239,668,716.65/18,162.66
  6. Step 6: Final answer
    x = 13,195.68

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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.