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Finding the Fourth Proportional to 12,099.40, 18,146.22 and 4,703.56

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Solution

The fourth proportional to 12,099.40, 18,146.22 and 4,703.56 is: 7,054.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,099.40 : 18,146.22 = 4,703.56 : x
  2. Step 2: Convert to fraction form
    12,099.40/18,146.22 = 4,703.56/x
  3. Step 3: Cross multiply
    12,099.40x = 18,146.22 × 4,703.56
  4. Step 4: Simplify right side
    12,099.40x = 85,351,834.54
  5. Step 5: Solve for x
    x = 85,351,834.54/12,099.40
  6. Step 6: Final answer
    x = 7,054.22

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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.