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Finding the Fourth Proportional to 8,668, 11,962 and 6,188.32

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Solution

The fourth proportional to 8,668, 11,962 and 6,188.32 is: 8,540.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,668 : 11,962 = 6,188.32 : x
  2. Step 2: Convert to fraction form
    8,668/11,962 = 6,188.32/x
  3. Step 3: Cross multiply
    8,668x = 11,962 × 6,188.32
  4. Step 4: Simplify right side
    8,668x = 74,024,683.84
  5. Step 5: Solve for x
    x = 74,024,683.84/8,668
  6. Step 6: Final answer
    x = 8,540.00

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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.