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Finding the Fourth Proportional to 12,348.20, 18,506.10 and 4,946.60

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Solution

The fourth proportional to 12,348.20, 18,506.10 and 4,946.60 is: 7,413.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,348.20 : 18,506.10 = 4,946.60 : x
  2. Step 2: Convert to fraction form
    12,348.20/18,506.10 = 4,946.60/x
  3. Step 3: Cross multiply
    12,348.20x = 18,506.10 × 4,946.60
  4. Step 4: Simplify right side
    12,348.20x = 91,542,274.26
  5. Step 5: Solve for x
    x = 91,542,274.26/12,348.20
  6. Step 6: Final answer
    x = 7,413.41

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.