Home / 8,664.98-12,997.43-2,091.15

Finding the Fourth Proportional to 8,664.98, 12,997.43 and 2,091.15

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Solution

The fourth proportional to 8,664.98, 12,997.43 and 2,091.15 is: 3,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.98 : 12,997.43 = 2,091.15 : x
  2. Step 2: Convert to fraction form
    8,664.98/12,997.43 = 2,091.15/x
  3. Step 3: Cross multiply
    8,664.98x = 12,997.43 × 2,091.15
  4. Step 4: Simplify right side
    8,664.98x = 27,179,573.13
  5. Step 5: Solve for x
    x = 27,179,573.13/8,664.98
  6. Step 6: Final answer
    x = 3,136.72

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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.