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Finding the Fourth Proportional to 8,188.83, 12,262.05 and 6,869.39

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Solution

The fourth proportional to 8,188.83, 12,262.05 and 6,869.39 is: 10,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,188.83 : 12,262.05 = 6,869.39 : x
  2. Step 2: Convert to fraction form
    8,188.83/12,262.05 = 6,869.39/x
  3. Step 3: Cross multiply
    8,188.83x = 12,262.05 × 6,869.39
  4. Step 4: Simplify right side
    8,188.83x = 84,232,742.34
  5. Step 5: Solve for x
    x = 84,232,742.34/8,188.83
  6. Step 6: Final answer
    x = 10,286.30

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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.