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Finding the Fourth Proportional to 8,258.92, 12,388.79 and 2,713.86

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Solution

The fourth proportional to 8,258.92, 12,388.79 and 2,713.86 is: 4,070.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.92 : 12,388.79 = 2,713.86 : x
  2. Step 2: Convert to fraction form
    8,258.92/12,388.79 = 2,713.86/x
  3. Step 3: Cross multiply
    8,258.92x = 12,388.79 × 2,713.86
  4. Step 4: Simplify right side
    8,258.92x = 33,621,484.70
  5. Step 5: Solve for x
    x = 33,621,484.70/8,258.92
  6. Step 6: Final answer
    x = 4,070.93

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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.