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Finding the Fourth Proportional to 9,103.92, 13,658.45 and 8,236.41

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Solution

The fourth proportional to 9,103.92, 13,658.45 and 8,236.41 is: 12,356.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,103.92 : 13,658.45 = 8,236.41 : x
  2. Step 2: Convert to fraction form
    9,103.92/13,658.45 = 8,236.41/x
  3. Step 3: Cross multiply
    9,103.92x = 13,658.45 × 8,236.41
  4. Step 4: Simplify right side
    9,103.92x = 112,496,552.98
  5. Step 5: Solve for x
    x = 112,496,552.98/9,103.92
  6. Step 6: Final answer
    x = 12,356.94

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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.