Home / 8,319.97-12,469.50-4,161.13

Finding the Fourth Proportional to 8,319.97, 12,469.50 and 4,161.13

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Solution

The fourth proportional to 8,319.97, 12,469.50 and 4,161.13 is: 6,236.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.97 : 12,469.50 = 4,161.13 : x
  2. Step 2: Convert to fraction form
    8,319.97/12,469.50 = 4,161.13/x
  3. Step 3: Cross multiply
    8,319.97x = 12,469.50 × 4,161.13
  4. Step 4: Simplify right side
    8,319.97x = 51,887,210.54
  5. Step 5: Solve for x
    x = 51,887,210.54/8,319.97
  6. Step 6: Final answer
    x = 6,236.47

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1.5x scale

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.