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Finding the Fourth Proportional to 18,382.17, 27,584.01 and 7,287.47

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Solution

The fourth proportional to 18,382.17, 27,584.01 and 7,287.47 is: 10,935.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,382.17 : 27,584.01 = 7,287.47 : x
  2. Step 2: Convert to fraction form
    18,382.17/27,584.01 = 7,287.47/x
  3. Step 3: Cross multiply
    18,382.17x = 27,584.01 × 7,287.47
  4. Step 4: Simplify right side
    18,382.17x = 201,017,645.35
  5. Step 5: Solve for x
    x = 201,017,645.35/18,382.17
  6. Step 6: Final answer
    x = 10,935.47

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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.