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Finding the Fourth Proportional to 8,662.97, 11,954.18 and 4,887.07

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Solution

The fourth proportional to 8,662.97, 11,954.18 and 4,887.07 is: 6,743.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,662.97 : 11,954.18 = 4,887.07 : x
  2. Step 2: Convert to fraction form
    8,662.97/11,954.18 = 4,887.07/x
  3. Step 3: Cross multiply
    8,662.97x = 11,954.18 × 4,887.07
  4. Step 4: Simplify right side
    8,662.97x = 58,420,914.45
  5. Step 5: Solve for x
    x = 58,420,914.45/8,662.97
  6. Step 6: Final answer
    x = 6,743.75

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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.