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Finding the Fourth Proportional to 8,153.50, 12,230.28 and 1,997.50

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Solution

The fourth proportional to 8,153.50, 12,230.28 and 1,997.50 is: 2,996.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,153.50 : 12,230.28 = 1,997.50 : x
  2. Step 2: Convert to fraction form
    8,153.50/12,230.28 = 1,997.50/x
  3. Step 3: Cross multiply
    8,153.50x = 12,230.28 × 1,997.50
  4. Step 4: Simplify right side
    8,153.50x = 24,429,984.30
  5. Step 5: Solve for x
    x = 24,429,984.30/8,153.50
  6. Step 6: Final answer
    x = 2,996.26

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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.