Home / 11,916.61-17,861.95-8,974.69

Finding the Fourth Proportional to 11,916.61, 17,861.95 and 8,974.69

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Solution

The fourth proportional to 11,916.61, 17,861.95 and 8,974.69 is: 13,452.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.61 : 17,861.95 = 8,974.69 : x
  2. Step 2: Convert to fraction form
    11,916.61/17,861.95 = 8,974.69/x
  3. Step 3: Cross multiply
    11,916.61x = 17,861.95 × 8,974.69
  4. Step 4: Simplify right side
    11,916.61x = 160,305,396.95
  5. Step 5: Solve for x
    x = 160,305,396.95/11,916.61
  6. Step 6: Final answer
    x = 13,452.27

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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.