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Finding the Fourth Proportional to 18,087.25, 27,133.95 and 6,237.81

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Solution

The fourth proportional to 18,087.25, 27,133.95 and 6,237.81 is: 9,357.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.25 : 27,133.95 = 6,237.81 : x
  2. Step 2: Convert to fraction form
    18,087.25/27,133.95 = 6,237.81/x
  3. Step 3: Cross multiply
    18,087.25x = 27,133.95 × 6,237.81
  4. Step 4: Simplify right side
    18,087.25x = 169,256,424.65
  5. Step 5: Solve for x
    x = 169,256,424.65/18,087.25
  6. Step 6: Final answer
    x = 9,357.78

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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.