Home / 8,481.21-11,704.78-4,705.59

Finding the Fourth Proportional to 8,481.21, 11,704.78 and 4,705.59

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Solution

The fourth proportional to 8,481.21, 11,704.78 and 4,705.59 is: 6,494.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.21 : 11,704.78 = 4,705.59 : x
  2. Step 2: Convert to fraction form
    8,481.21/11,704.78 = 4,705.59/x
  3. Step 3: Cross multiply
    8,481.21x = 11,704.78 × 4,705.59
  4. Step 4: Simplify right side
    8,481.21x = 55,077,837.20
  5. Step 5: Solve for x
    x = 55,077,837.20/8,481.21
  6. Step 6: Final answer
    x = 6,494.11

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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.