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Finding the Fourth Proportional to 8,622.12, 12,929.94 and 6,794.76

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Solution

The fourth proportional to 8,622.12, 12,929.94 and 6,794.76 is: 10,189.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.12 : 12,929.94 = 6,794.76 : x
  2. Step 2: Convert to fraction form
    8,622.12/12,929.94 = 6,794.76/x
  3. Step 3: Cross multiply
    8,622.12x = 12,929.94 × 6,794.76
  4. Step 4: Simplify right side
    8,622.12x = 87,855,839.11
  5. Step 5: Solve for x
    x = 87,855,839.11/8,622.12
  6. Step 6: Final answer
    x = 10,189.59

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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.