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Finding the Fourth Proportional to 8,885.86, 12,262.12 and 4,906.91

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Solution

The fourth proportional to 8,885.86, 12,262.12 and 4,906.91 is: 6,771.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,885.86 : 12,262.12 = 4,906.91 : x
  2. Step 2: Convert to fraction form
    8,885.86/12,262.12 = 4,906.91/x
  3. Step 3: Cross multiply
    8,885.86x = 12,262.12 × 4,906.91
  4. Step 4: Simplify right side
    8,885.86x = 60,169,137.64
  5. Step 5: Solve for x
    x = 60,169,137.64/8,885.86
  6. Step 6: Final answer
    x = 6,771.34

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.