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Finding the Fourth Proportional to 8,698.31, 11,999.06 and 6,181.44

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Solution

The fourth proportional to 8,698.31, 11,999.06 and 6,181.44 is: 8,527.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.31 : 11,999.06 = 6,181.44 : x
  2. Step 2: Convert to fraction form
    8,698.31/11,999.06 = 6,181.44/x
  3. Step 3: Cross multiply
    8,698.31x = 11,999.06 × 6,181.44
  4. Step 4: Simplify right side
    8,698.31x = 74,171,469.45
  5. Step 5: Solve for x
    x = 74,171,469.45/8,698.31
  6. Step 6: Final answer
    x = 8,527.11

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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.