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Finding the Fourth Proportional to 12,197.22, 18,301.98 and 4,806.98

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Solution

The fourth proportional to 12,197.22, 18,301.98 and 4,806.98 is: 7,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,197.22 : 18,301.98 = 4,806.98 : x
  2. Step 2: Convert to fraction form
    12,197.22/18,301.98 = 4,806.98/x
  3. Step 3: Cross multiply
    12,197.22x = 18,301.98 × 4,806.98
  4. Step 4: Simplify right side
    12,197.22x = 87,977,160.31
  5. Step 5: Solve for x
    x = 87,977,160.31/12,197.22
  6. Step 6: Final answer
    x = 7,212.89

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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.