Home / 8,531.16-11,772.60-4,945.56

Finding the Fourth Proportional to 8,531.16, 11,772.60 and 4,945.56

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Solution

The fourth proportional to 8,531.16, 11,772.60 and 4,945.56 is: 6,824.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.16 : 11,772.60 = 4,945.56 : x
  2. Step 2: Convert to fraction form
    8,531.16/11,772.60 = 4,945.56/x
  3. Step 3: Cross multiply
    8,531.16x = 11,772.60 × 4,945.56
  4. Step 4: Simplify right side
    8,531.16x = 58,222,099.66
  5. Step 5: Solve for x
    x = 58,222,099.66/8,531.16
  6. Step 6: Final answer
    x = 6,824.64

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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.