Home / 8,485.26-12,727.80-3,291.12

Finding the Fourth Proportional to 8,485.26, 12,727.80 and 3,291.12

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Solution

The fourth proportional to 8,485.26, 12,727.80 and 3,291.12 is: 4,936.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.26 : 12,727.80 = 3,291.12 : x
  2. Step 2: Convert to fraction form
    8,485.26/12,727.80 = 3,291.12/x
  3. Step 3: Cross multiply
    8,485.26x = 12,727.80 × 3,291.12
  4. Step 4: Simplify right side
    8,485.26x = 41,888,717.14
  5. Step 5: Solve for x
    x = 41,888,717.14/8,485.26
  6. Step 6: Final answer
    x = 4,936.65

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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.