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Finding the Fourth Proportional to 8,754.88, 12,091.81 and 6,375.49

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Solution

The fourth proportional to 8,754.88, 12,091.81 and 6,375.49 is: 8,805.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.88 : 12,091.81 = 6,375.49 : x
  2. Step 2: Convert to fraction form
    8,754.88/12,091.81 = 6,375.49/x
  3. Step 3: Cross multiply
    8,754.88x = 12,091.81 × 6,375.49
  4. Step 4: Simplify right side
    8,754.88x = 77,091,213.74
  5. Step 5: Solve for x
    x = 77,091,213.74/8,754.88
  6. Step 6: Final answer
    x = 8,805.51

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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.