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Finding the Fourth Proportional to 8,946.60, 13,410.30 and 3,397.80

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Solution

The fourth proportional to 8,946.60, 13,410.30 and 3,397.80 is: 5,093.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,946.60 : 13,410.30 = 3,397.80 : x
  2. Step 2: Convert to fraction form
    8,946.60/13,410.30 = 3,397.80/x
  3. Step 3: Cross multiply
    8,946.60x = 13,410.30 × 3,397.80
  4. Step 4: Simplify right side
    8,946.60x = 45,565,517.34
  5. Step 5: Solve for x
    x = 45,565,517.34/8,946.60
  6. Step 6: Final answer
    x = 5,093.05

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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.