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Finding the Fourth Proportional to 8,011.86, 12,017.97 and 3,330.54

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Solution

The fourth proportional to 8,011.86, 12,017.97 and 3,330.54 is: 4,995.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,011.86 : 12,017.97 = 3,330.54 : x
  2. Step 2: Convert to fraction form
    8,011.86/12,017.97 = 3,330.54/x
  3. Step 3: Cross multiply
    8,011.86x = 12,017.97 × 3,330.54
  4. Step 4: Simplify right side
    8,011.86x = 40,026,329.80
  5. Step 5: Solve for x
    x = 40,026,329.80/8,011.86
  6. Step 6: Final answer
    x = 4,995.88

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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.