Home / 11,916.19-17,872.24-3,151.99

Finding the Fourth Proportional to 11,916.19, 17,872.24 and 3,151.99

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Solution

The fourth proportional to 11,916.19, 17,872.24 and 3,151.99 is: 4,727.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.19 : 17,872.24 = 3,151.99 : x
  2. Step 2: Convert to fraction form
    11,916.19/17,872.24 = 3,151.99/x
  3. Step 3: Cross multiply
    11,916.19x = 17,872.24 × 3,151.99
  4. Step 4: Simplify right side
    11,916.19x = 56,333,121.76
  5. Step 5: Solve for x
    x = 56,333,121.76/11,916.19
  6. Step 6: Final answer
    x = 4,727.44

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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.