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Finding the Fourth Proportional to 6,326.20, 9,489.30 and 6,239.80

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Solution

The fourth proportional to 6,326.20, 9,489.30 and 6,239.80 is: 9,359.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,326.20 : 9,489.30 = 6,239.80 : x
  2. Step 2: Convert to fraction form
    6,326.20/9,489.30 = 6,239.80/x
  3. Step 3: Cross multiply
    6,326.20x = 9,489.30 × 6,239.80
  4. Step 4: Simplify right side
    6,326.20x = 59,211,334.14
  5. Step 5: Solve for x
    x = 59,211,334.14/6,326.20
  6. Step 6: Final answer
    x = 9,359.70

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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.