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Finding the Fourth Proportional to 8,914.67, 12,308.79 and 6,793.89

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Solution

The fourth proportional to 8,914.67, 12,308.79 and 6,793.89 is: 9,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,914.67 : 12,308.79 = 6,793.89 : x
  2. Step 2: Convert to fraction form
    8,914.67/12,308.79 = 6,793.89/x
  3. Step 3: Cross multiply
    8,914.67x = 12,308.79 × 6,793.89
  4. Step 4: Simplify right side
    8,914.67x = 83,624,565.29
  5. Step 5: Solve for x
    x = 83,624,565.29/8,914.67
  6. Step 6: Final answer
    x = 9,380.56

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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.