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Finding the Fourth Proportional to 17,997.76, 26,999.52 and 8,136.64

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Solution

The fourth proportional to 17,997.76, 26,999.52 and 8,136.64 is: 12,206.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,997.76 : 26,999.52 = 8,136.64 : x
  2. Step 2: Convert to fraction form
    17,997.76/26,999.52 = 8,136.64/x
  3. Step 3: Cross multiply
    17,997.76x = 26,999.52 × 8,136.64
  4. Step 4: Simplify right side
    17,997.76x = 219,685,374.41
  5. Step 5: Solve for x
    x = 219,685,374.41/17,997.76
  6. Step 6: Final answer
    x = 12,206.26

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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.