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Finding the Fourth Proportional to 18,015.52, 27,004.92 and 10,207.84

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Solution

The fourth proportional to 18,015.52, 27,004.92 and 10,207.84 is: 15,301.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.52 : 27,004.92 = 10,207.84 : x
  2. Step 2: Convert to fraction form
    18,015.52/27,004.92 = 10,207.84/x
  3. Step 3: Cross multiply
    18,015.52x = 27,004.92 × 10,207.84
  4. Step 4: Simplify right side
    18,015.52x = 275,661,902.57
  5. Step 5: Solve for x
    x = 275,661,902.57/18,015.52
  6. Step 6: Final answer
    x = 15,301.36

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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.