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Finding the Fourth Proportional to 8,451.50, 12,679.44 and 4,944.50

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Solution

The fourth proportional to 8,451.50, 12,679.44 and 4,944.50 is: 7,418.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.50 : 12,679.44 = 4,944.50 : x
  2. Step 2: Convert to fraction form
    8,451.50/12,679.44 = 4,944.50/x
  3. Step 3: Cross multiply
    8,451.50x = 12,679.44 × 4,944.50
  4. Step 4: Simplify right side
    8,451.50x = 62,693,491.08
  5. Step 5: Solve for x
    x = 62,693,491.08/8,451.50
  6. Step 6: Final answer
    x = 7,418.03

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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.