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Finding the Fourth Proportional to 8,011.65, 12,020.60 and 3,330.50

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Solution

The fourth proportional to 8,011.65, 12,020.60 and 3,330.50 is: 4,997.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,011.65 : 12,020.60 = 3,330.50 : x
  2. Step 2: Convert to fraction form
    8,011.65/12,020.60 = 3,330.50/x
  3. Step 3: Cross multiply
    8,011.65x = 12,020.60 × 3,330.50
  4. Step 4: Simplify right side
    8,011.65x = 40,034,531.54
  5. Step 5: Solve for x
    x = 40,034,531.54/8,011.65
  6. Step 6: Final answer
    x = 4,997.04

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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.