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Finding the Fourth Proportional to 8,592, 12,876.45 and 3,660.31

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Solution

The fourth proportional to 8,592, 12,876.45 and 3,660.31 is: 5,485.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,592 : 12,876.45 = 3,660.31 : x
  2. Step 2: Convert to fraction form
    8,592/12,876.45 = 3,660.31/x
  3. Step 3: Cross multiply
    8,592x = 12,876.45 × 3,660.31
  4. Step 4: Simplify right side
    8,592x = 47,131,798.70
  5. Step 5: Solve for x
    x = 47,131,798.70/8,592
  6. Step 6: Final answer
    x = 5,485.54

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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.