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Finding the Fourth Proportional to 6,847.89, 9,450.18 and 3,863.72

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Solution

The fourth proportional to 6,847.89, 9,450.18 and 3,863.72 is: 5,331.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,847.89 : 9,450.18 = 3,863.72 : x
  2. Step 2: Convert to fraction form
    6,847.89/9,450.18 = 3,863.72/x
  3. Step 3: Cross multiply
    6,847.89x = 9,450.18 × 3,863.72
  4. Step 4: Simplify right side
    6,847.89x = 36,512,802.22
  5. Step 5: Solve for x
    x = 36,512,802.22/6,847.89
  6. Step 6: Final answer
    x = 5,331.98

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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.