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Finding the Fourth Proportional to 18,636.36, 27,945.90 and 6,946.44

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Solution

The fourth proportional to 18,636.36, 27,945.90 and 6,946.44 is: 10,416.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,636.36 : 27,945.90 = 6,946.44 : x
  2. Step 2: Convert to fraction form
    18,636.36/27,945.90 = 6,946.44/x
  3. Step 3: Cross multiply
    18,636.36x = 27,945.90 × 6,946.44
  4. Step 4: Simplify right side
    18,636.36x = 194,124,517.60
  5. Step 5: Solve for x
    x = 194,124,517.60/18,636.36
  6. Step 6: Final answer
    x = 10,416.44

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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.