Home / 9,997.20-14,979.60-8,344.80

Finding the Fourth Proportional to 9,997.20, 14,979.60 and 8,344.80

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Solution

The fourth proportional to 9,997.20, 14,979.60 and 8,344.80 is: 12,503.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,997.20 : 14,979.60 = 8,344.80 : x
  2. Step 2: Convert to fraction form
    9,997.20/14,979.60 = 8,344.80/x
  3. Step 3: Cross multiply
    9,997.20x = 14,979.60 × 8,344.80
  4. Step 4: Simplify right side
    9,997.20x = 125,001,766.08
  5. Step 5: Solve for x
    x = 125,001,766.08/9,997.20
  6. Step 6: Final answer
    x = 12,503.68

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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.