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Finding the Fourth Proportional to 8,795.86, 13,193.79 and 8,212.66

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Solution

The fourth proportional to 8,795.86, 13,193.79 and 8,212.66 is: 12,318.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,795.86 : 13,193.79 = 8,212.66 : x
  2. Step 2: Convert to fraction form
    8,795.86/13,193.79 = 8,212.66/x
  3. Step 3: Cross multiply
    8,795.86x = 13,193.79 × 8,212.66
  4. Step 4: Simplify right side
    8,795.86x = 108,356,111.38
  5. Step 5: Solve for x
    x = 108,356,111.38/8,795.86
  6. Step 6: Final answer
    x = 12,318.99

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Similar ratio
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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.