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Finding the Fourth Proportional to 12,673.10, 19,020.45 and 5,663.90

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Solution

The fourth proportional to 12,673.10, 19,020.45 and 5,663.90 is: 8,500.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,673.10 : 19,020.45 = 5,663.90 : x
  2. Step 2: Convert to fraction form
    12,673.10/19,020.45 = 5,663.90/x
  3. Step 3: Cross multiply
    12,673.10x = 19,020.45 × 5,663.90
  4. Step 4: Simplify right side
    12,673.10x = 107,729,926.76
  5. Step 5: Solve for x
    x = 107,729,926.76/12,673.10
  6. Step 6: Final answer
    x = 8,500.68

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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.