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Finding the Fourth Proportional to 8,615.22, 12,926.19 and 6,964.74

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Solution

The fourth proportional to 8,615.22, 12,926.19 and 6,964.74 is: 10,449.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615.22 : 12,926.19 = 6,964.74 : x
  2. Step 2: Convert to fraction form
    8,615.22/12,926.19 = 6,964.74/x
  3. Step 3: Cross multiply
    8,615.22x = 12,926.19 × 6,964.74
  4. Step 4: Simplify right side
    8,615.22x = 90,027,552.54
  5. Step 5: Solve for x
    x = 90,027,552.54/8,615.22
  6. Step 6: Final answer
    x = 10,449.83

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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.