Home / 8,309.18-12,461.07-2,761.03

Finding the Fourth Proportional to 8,309.18, 12,461.07 and 2,761.03

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Solution

The fourth proportional to 8,309.18, 12,461.07 and 2,761.03 is: 4,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309.18 : 12,461.07 = 2,761.03 : x
  2. Step 2: Convert to fraction form
    8,309.18/12,461.07 = 2,761.03/x
  3. Step 3: Cross multiply
    8,309.18x = 12,461.07 × 2,761.03
  4. Step 4: Simplify right side
    8,309.18x = 34,405,414.03
  5. Step 5: Solve for x
    x = 34,405,414.03/8,309.18
  6. Step 6: Final answer
    x = 4,140.65

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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.