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Finding the Fourth Proportional to 8,336.85, 11,481.52 and 8,155.41

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Solution

The fourth proportional to 8,336.85, 11,481.52 and 8,155.41 is: 11,231.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,336.85 : 11,481.52 = 8,155.41 : x
  2. Step 2: Convert to fraction form
    8,336.85/11,481.52 = 8,155.41/x
  3. Step 3: Cross multiply
    8,336.85x = 11,481.52 × 8,155.41
  4. Step 4: Simplify right side
    8,336.85x = 93,636,503.02
  5. Step 5: Solve for x
    x = 93,636,503.02/8,336.85
  6. Step 6: Final answer
    x = 11,231.64

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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.