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Finding the Fourth Proportional to 12,609.57, 18,916.44 and 3,842.44

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Solution

The fourth proportional to 12,609.57, 18,916.44 and 3,842.44 is: 5,764.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.57 : 18,916.44 = 3,842.44 : x
  2. Step 2: Convert to fraction form
    12,609.57/18,916.44 = 3,842.44/x
  3. Step 3: Cross multiply
    12,609.57x = 18,916.44 × 3,842.44
  4. Step 4: Simplify right side
    12,609.57x = 72,685,224.01
  5. Step 5: Solve for x
    x = 72,685,224.01/12,609.57
  6. Step 6: Final answer
    x = 5,764.29

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1.5x scale

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.