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Finding the Fourth Proportional to 8,940.34, 12,337.80 and 4,961.62

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Solution

The fourth proportional to 8,940.34, 12,337.80 and 4,961.62 is: 6,847.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.34 : 12,337.80 = 4,961.62 : x
  2. Step 2: Convert to fraction form
    8,940.34/12,337.80 = 4,961.62/x
  3. Step 3: Cross multiply
    8,940.34x = 12,337.80 × 4,961.62
  4. Step 4: Simplify right side
    8,940.34x = 61,215,413.55
  5. Step 5: Solve for x
    x = 61,215,413.55/8,940.34
  6. Step 6: Final answer
    x = 6,847.11

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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.