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Finding the Fourth Proportional to 7,227.92, 9,936.19 and 6,215.90

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Solution

The fourth proportional to 7,227.92, 9,936.19 and 6,215.90 is: 8,544.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,227.92 : 9,936.19 = 6,215.90 : x
  2. Step 2: Convert to fraction form
    7,227.92/9,936.19 = 6,215.90/x
  3. Step 3: Cross multiply
    7,227.92x = 9,936.19 × 6,215.90
  4. Step 4: Simplify right side
    7,227.92x = 61,762,408.86
  5. Step 5: Solve for x
    x = 61,762,408.86/7,227.92
  6. Step 6: Final answer
    x = 8,544.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.