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Finding the Fourth Proportional to 12,163.53, 18,245.48 and 8,030.01

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Solution

The fourth proportional to 12,163.53, 18,245.48 and 8,030.01 is: 12,045.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.53 : 18,245.48 = 8,030.01 : x
  2. Step 2: Convert to fraction form
    12,163.53/18,245.48 = 8,030.01/x
  3. Step 3: Cross multiply
    12,163.53x = 18,245.48 × 8,030.01
  4. Step 4: Simplify right side
    12,163.53x = 146,511,386.85
  5. Step 5: Solve for x
    x = 146,511,386.85/12,163.53
  6. Step 6: Final answer
    x = 12,045.14

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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.