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Finding the Fourth Proportional to 6,474.50, 8,968.65 and 6,343.28

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Solution

The fourth proportional to 6,474.50, 8,968.65 and 6,343.28 is: 8,786.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,474.50 : 8,968.65 = 6,343.28 : x
  2. Step 2: Convert to fraction form
    6,474.50/8,968.65 = 6,343.28/x
  3. Step 3: Cross multiply
    6,474.50x = 8,968.65 × 6,343.28
  4. Step 4: Simplify right side
    6,474.50x = 56,890,641.01
  5. Step 5: Solve for x
    x = 56,890,641.01/6,474.50
  6. Step 6: Final answer
    x = 8,786.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.