Home / 8,571.52-11,818.56-6,680.96

Finding the Fourth Proportional to 8,571.52, 11,818.56 and 6,680.96

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Solution

The fourth proportional to 8,571.52, 11,818.56 and 6,680.96 is: 9,211.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571.52 : 11,818.56 = 6,680.96 : x
  2. Step 2: Convert to fraction form
    8,571.52/11,818.56 = 6,680.96/x
  3. Step 3: Cross multiply
    8,571.52x = 11,818.56 × 6,680.96
  4. Step 4: Simplify right side
    8,571.52x = 78,959,326.62
  5. Step 5: Solve for x
    x = 78,959,326.62/8,571.52
  6. Step 6: Final answer
    x = 9,211.82

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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.