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Finding the Fourth Proportional to 8,538.33, 12,809.03 and 3,860.54

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Solution

The fourth proportional to 8,538.33, 12,809.03 and 3,860.54 is: 5,791.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.33 : 12,809.03 = 3,860.54 : x
  2. Step 2: Convert to fraction form
    8,538.33/12,809.03 = 3,860.54/x
  3. Step 3: Cross multiply
    8,538.33x = 12,809.03 × 3,860.54
  4. Step 4: Simplify right side
    8,538.33x = 49,449,727.82
  5. Step 5: Solve for x
    x = 49,449,727.82/8,538.33
  6. Step 6: Final answer
    x = 5,791.50

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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.