Home / 11,515.12-17,269-4,939.54

Finding the Fourth Proportional to 11,515.12, 17,269 and 4,939.54

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Solution

The fourth proportional to 11,515.12, 17,269 and 4,939.54 is: 7,407.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.12 : 17,269 = 4,939.54 : x
  2. Step 2: Convert to fraction form
    11,515.12/17,269 = 4,939.54/x
  3. Step 3: Cross multiply
    11,515.12x = 17,269 × 4,939.54
  4. Step 4: Simplify right side
    11,515.12x = 85,300,916.26
  5. Step 5: Solve for x
    x = 85,300,916.26/11,515.12
  6. Step 6: Final answer
    x = 7,407.73

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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.