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Finding the Fourth Proportional to 18,382.68, 27,564.48 and 9,018.60

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Solution

The fourth proportional to 18,382.68, 27,564.48 and 9,018.60 is: 13,523.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,382.68 : 27,564.48 = 9,018.60 : x
  2. Step 2: Convert to fraction form
    18,382.68/27,564.48 = 9,018.60/x
  3. Step 3: Cross multiply
    18,382.68x = 27,564.48 × 9,018.60
  4. Step 4: Simplify right side
    18,382.68x = 248,593,019.33
  5. Step 5: Solve for x
    x = 248,593,019.33/18,382.68
  6. Step 6: Final answer
    x = 13,523.22

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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.