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Finding the Fourth Proportional to 8,318, 12,479.06 and 2,474.59

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Solution

The fourth proportional to 8,318, 12,479.06 and 2,474.59 is: 3,712.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318 : 12,479.06 = 2,474.59 : x
  2. Step 2: Convert to fraction form
    8,318/12,479.06 = 2,474.59/x
  3. Step 3: Cross multiply
    8,318x = 12,479.06 × 2,474.59
  4. Step 4: Simplify right side
    8,318x = 30,880,557.09
  5. Step 5: Solve for x
    x = 30,880,557.09/8,318
  6. Step 6: Final answer
    x = 3,712.50

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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.