Home / 8,449.29-12,669.77-4,940.19

Finding the Fourth Proportional to 8,449.29, 12,669.77 and 4,940.19

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Solution

The fourth proportional to 8,449.29, 12,669.77 and 4,940.19 is: 7,407.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,449.29 : 12,669.77 = 4,940.19 : x
  2. Step 2: Convert to fraction form
    8,449.29/12,669.77 = 4,940.19/x
  3. Step 3: Cross multiply
    8,449.29x = 12,669.77 × 4,940.19
  4. Step 4: Simplify right side
    8,449.29x = 62,591,083.41
  5. Step 5: Solve for x
    x = 62,591,083.41/8,449.29
  6. Step 6: Final answer
    x = 7,407.85

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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.