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Finding the Fourth Proportional to 19,089.67, 28,650 and 8,004.14

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Solution

The fourth proportional to 19,089.67, 28,650 and 8,004.14 is: 12,012.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.67 : 28,650 = 8,004.14 : x
  2. Step 2: Convert to fraction form
    19,089.67/28,650 = 8,004.14/x
  3. Step 3: Cross multiply
    19,089.67x = 28,650 × 8,004.14
  4. Step 4: Simplify right side
    19,089.67x = 229,318,611
  5. Step 5: Solve for x
    x = 229,318,611/19,089.67
  6. Step 6: Final answer
    x = 12,012.71

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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.