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Finding the Fourth Proportional to 8,325.36, 12,479.52 and 3,946.50

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Solution

The fourth proportional to 8,325.36, 12,479.52 and 3,946.50 is: 5,915.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,325.36 : 12,479.52 = 3,946.50 : x
  2. Step 2: Convert to fraction form
    8,325.36/12,479.52 = 3,946.50/x
  3. Step 3: Cross multiply
    8,325.36x = 12,479.52 × 3,946.50
  4. Step 4: Simplify right side
    8,325.36x = 49,250,425.68
  5. Step 5: Solve for x
    x = 49,250,425.68/8,325.36
  6. Step 6: Final answer
    x = 5,915.71

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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.