Home / 12,787.06-19,183.22-5,391.54

Finding the Fourth Proportional to 12,787.06, 19,183.22 and 5,391.54

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Solution

The fourth proportional to 12,787.06, 19,183.22 and 5,391.54 is: 8,088.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787.06 : 19,183.22 = 5,391.54 : x
  2. Step 2: Convert to fraction form
    12,787.06/19,183.22 = 5,391.54/x
  3. Step 3: Cross multiply
    12,787.06x = 19,183.22 × 5,391.54
  4. Step 4: Simplify right side
    12,787.06x = 103,427,097.96
  5. Step 5: Solve for x
    x = 103,427,097.96/12,787.06
  6. Step 6: Final answer
    x = 8,088.42

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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.