Home / 8,325.64-12,487.90-3,946.60

Finding the Fourth Proportional to 8,325.64, 12,487.90 and 3,946.60

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Solution

The fourth proportional to 8,325.64, 12,487.90 and 3,946.60 is: 5,919.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,325.64 : 12,487.90 = 3,946.60 : x
  2. Step 2: Convert to fraction form
    8,325.64/12,487.90 = 3,946.60/x
  3. Step 3: Cross multiply
    8,325.64x = 12,487.90 × 3,946.60
  4. Step 4: Simplify right side
    8,325.64x = 49,284,746.14
  5. Step 5: Solve for x
    x = 49,284,746.14/8,325.64
  6. Step 6: Final answer
    x = 5,919.63

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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.