Home / 8,099.27-11,154.65-6,979.80

Finding the Fourth Proportional to 8,099.27, 11,154.65 and 6,979.80

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Solution

The fourth proportional to 8,099.27, 11,154.65 and 6,979.80 is: 9,612.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.27 : 11,154.65 = 6,979.80 : x
  2. Step 2: Convert to fraction form
    8,099.27/11,154.65 = 6,979.80/x
  3. Step 3: Cross multiply
    8,099.27x = 11,154.65 × 6,979.80
  4. Step 4: Simplify right side
    8,099.27x = 77,857,233.00
  5. Step 5: Solve for x
    x = 77,857,233.00/8,099.27
  6. Step 6: Final answer
    x = 9,612.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.