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Finding the Fourth Proportional to 6,326.58, 9,489.90 and 2,166.72

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Solution

The fourth proportional to 6,326.58, 9,489.90 and 2,166.72 is: 3,250.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,326.58 : 9,489.90 = 2,166.72 : x
  2. Step 2: Convert to fraction form
    6,326.58/9,489.90 = 2,166.72/x
  3. Step 3: Cross multiply
    6,326.58x = 9,489.90 × 2,166.72
  4. Step 4: Simplify right side
    6,326.58x = 20,561,956.13
  5. Step 5: Solve for x
    x = 20,561,956.13/6,326.58
  6. Step 6: Final answer
    x = 3,250.09

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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.