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Finding the Fourth Proportional to 16,921.69, 25,382.53 and 4,609.69

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Solution

The fourth proportional to 16,921.69, 25,382.53 and 4,609.69 is: 6,914.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921.69 : 25,382.53 = 4,609.69 : x
  2. Step 2: Convert to fraction form
    16,921.69/25,382.53 = 4,609.69/x
  3. Step 3: Cross multiply
    16,921.69x = 25,382.53 × 4,609.69
  4. Step 4: Simplify right side
    16,921.69x = 117,005,537.02
  5. Step 5: Solve for x
    x = 117,005,537.02/16,921.69
  6. Step 6: Final answer
    x = 6,914.53

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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.