Home / 8,976.25-12,387.09-4,997.71

Finding the Fourth Proportional to 8,976.25, 12,387.09 and 4,997.71

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Solution

The fourth proportional to 8,976.25, 12,387.09 and 4,997.71 is: 6,896.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.25 : 12,387.09 = 4,997.71 : x
  2. Step 2: Convert to fraction form
    8,976.25/12,387.09 = 4,997.71/x
  3. Step 3: Cross multiply
    8,976.25x = 12,387.09 × 4,997.71
  4. Step 4: Simplify right side
    8,976.25x = 61,907,083.56
  5. Step 5: Solve for x
    x = 61,907,083.56/8,976.25
  6. Step 6: Final answer
    x = 6,896.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.