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Finding the Fourth Proportional to 8,169.45, 12,237.77 and 6,914.66

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Solution

The fourth proportional to 8,169.45, 12,237.77 and 6,914.66 is: 10,358.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,169.45 : 12,237.77 = 6,914.66 : x
  2. Step 2: Convert to fraction form
    8,169.45/12,237.77 = 6,914.66/x
  3. Step 3: Cross multiply
    8,169.45x = 12,237.77 × 6,914.66
  4. Step 4: Simplify right side
    8,169.45x = 84,620,014.73
  5. Step 5: Solve for x
    x = 84,620,014.73/8,169.45
  6. Step 6: Final answer
    x = 10,358.10

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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.