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Finding the Fourth Proportional to 36,608.12, 54,912.18 and 8,905.88

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Solution

The fourth proportional to 36,608.12, 54,912.18 and 8,905.88 is: 13,358.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,608.12 : 54,912.18 = 8,905.88 : x
  2. Step 2: Convert to fraction form
    36,608.12/54,912.18 = 8,905.88/x
  3. Step 3: Cross multiply
    36,608.12x = 54,912.18 × 8,905.88
  4. Step 4: Simplify right side
    36,608.12x = 489,041,285.62
  5. Step 5: Solve for x
    x = 489,041,285.62/36,608.12
  6. Step 6: Final answer
    x = 13,358.82

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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.