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Finding the Fourth Proportional to 18,454.97, 27,669.09 and 7,200.77

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Solution

The fourth proportional to 18,454.97, 27,669.09 and 7,200.77 is: 10,795.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,454.97 : 27,669.09 = 7,200.77 : x
  2. Step 2: Convert to fraction form
    18,454.97/27,669.09 = 7,200.77/x
  3. Step 3: Cross multiply
    18,454.97x = 27,669.09 × 7,200.77
  4. Step 4: Simplify right side
    18,454.97x = 199,238,614.85
  5. Step 5: Solve for x
    x = 199,238,614.85/18,454.97
  6. Step 6: Final answer
    x = 10,795.94

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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.