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Finding the Fourth Proportional to 8,480.22, 12,703.86 and 4,771.14

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Solution

The fourth proportional to 8,480.22, 12,703.86 and 4,771.14 is: 7,147.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.22 : 12,703.86 = 4,771.14 : x
  2. Step 2: Convert to fraction form
    8,480.22/12,703.86 = 4,771.14/x
  3. Step 3: Cross multiply
    8,480.22x = 12,703.86 × 4,771.14
  4. Step 4: Simplify right side
    8,480.22x = 60,611,894.60
  5. Step 5: Solve for x
    x = 60,611,894.60/8,480.22
  6. Step 6: Final answer
    x = 7,147.44

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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.