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Finding the Fourth Proportional to 6,425.88, 9,619.38 and 5,939.88

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Solution

The fourth proportional to 6,425.88, 9,619.38 and 5,939.88 is: 8,891.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,425.88 : 9,619.38 = 5,939.88 : x
  2. Step 2: Convert to fraction form
    6,425.88/9,619.38 = 5,939.88/x
  3. Step 3: Cross multiply
    6,425.88x = 9,619.38 × 5,939.88
  4. Step 4: Simplify right side
    6,425.88x = 57,137,962.87
  5. Step 5: Solve for x
    x = 57,137,962.87/6,425.88
  6. Step 6: Final answer
    x = 8,891.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.