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Finding the Fourth Proportional to 8,336.68, 11,456.48 and 7,951.20

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Solution

The fourth proportional to 8,336.68, 11,456.48 and 7,951.20 is: 10,926.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,336.68 : 11,456.48 = 7,951.20 : x
  2. Step 2: Convert to fraction form
    8,336.68/11,456.48 = 7,951.20/x
  3. Step 3: Cross multiply
    8,336.68x = 11,456.48 × 7,951.20
  4. Step 4: Simplify right side
    8,336.68x = 91,092,763.78
  5. Step 5: Solve for x
    x = 91,092,763.78/8,336.68
  6. Step 6: Final answer
    x = 10,926.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.