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Finding the Fourth Proportional to 8,479.08, 12,719.16 and 2,635.92

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Solution

The fourth proportional to 8,479.08, 12,719.16 and 2,635.92 is: 3,954.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.08 : 12,719.16 = 2,635.92 : x
  2. Step 2: Convert to fraction form
    8,479.08/12,719.16 = 2,635.92/x
  3. Step 3: Cross multiply
    8,479.08x = 12,719.16 × 2,635.92
  4. Step 4: Simplify right side
    8,479.08x = 33,526,688.23
  5. Step 5: Solve for x
    x = 33,526,688.23/8,479.08
  6. Step 6: Final answer
    x = 3,954.05

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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.