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Finding the Fourth Proportional to 8,180, 12,259.16 and 3,246.92

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Solution

The fourth proportional to 8,180, 12,259.16 and 3,246.92 is: 4,866.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180 : 12,259.16 = 3,246.92 : x
  2. Step 2: Convert to fraction form
    8,180/12,259.16 = 3,246.92/x
  3. Step 3: Cross multiply
    8,180x = 12,259.16 × 3,246.92
  4. Step 4: Simplify right side
    8,180x = 39,804,511.79
  5. Step 5: Solve for x
    x = 39,804,511.79/8,180
  6. Step 6: Final answer
    x = 4,866.08

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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.