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Finding the Fourth Proportional to 8,793.86, 12,135.56 and 4,815.35

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Solution

The fourth proportional to 8,793.86, 12,135.56 and 4,815.35 is: 6,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.86 : 12,135.56 = 4,815.35 : x
  2. Step 2: Convert to fraction form
    8,793.86/12,135.56 = 4,815.35/x
  3. Step 3: Cross multiply
    8,793.86x = 12,135.56 × 4,815.35
  4. Step 4: Simplify right side
    8,793.86x = 58,436,884.09
  5. Step 5: Solve for x
    x = 58,436,884.09/8,793.86
  6. Step 6: Final answer
    x = 6,645.20

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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.