Home / 8,229.91-12,344.15-6,661.35

Finding the Fourth Proportional to 8,229.91, 12,344.15 and 6,661.35

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Solution

The fourth proportional to 8,229.91, 12,344.15 and 6,661.35 is: 9,991.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,229.91 : 12,344.15 = 6,661.35 : x
  2. Step 2: Convert to fraction form
    8,229.91/12,344.15 = 6,661.35/x
  3. Step 3: Cross multiply
    8,229.91x = 12,344.15 × 6,661.35
  4. Step 4: Simplify right side
    8,229.91x = 82,228,703.60
  5. Step 5: Solve for x
    x = 82,228,703.60/8,229.91
  6. Step 6: Final answer
    x = 9,991.45

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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.