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Finding the Fourth Proportional to 8,269.45, 12,376.45 and 6,788.59

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Solution

The fourth proportional to 8,269.45, 12,376.45 and 6,788.59 is: 10,160.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,269.45 : 12,376.45 = 6,788.59 : x
  2. Step 2: Convert to fraction form
    8,269.45/12,376.45 = 6,788.59/x
  3. Step 3: Cross multiply
    8,269.45x = 12,376.45 × 6,788.59
  4. Step 4: Simplify right side
    8,269.45x = 84,018,622.25
  5. Step 5: Solve for x
    x = 84,018,622.25/8,269.45
  6. Step 6: Final answer
    x = 10,160.13

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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.