Home / 12,787.08-19,183.36-4,022.68

Finding the Fourth Proportional to 12,787.08, 19,183.36 and 4,022.68

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Solution

The fourth proportional to 12,787.08, 19,183.36 and 4,022.68 is: 6,034.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787.08 : 19,183.36 = 4,022.68 : x
  2. Step 2: Convert to fraction form
    12,787.08/19,183.36 = 4,022.68/x
  3. Step 3: Cross multiply
    12,787.08x = 19,183.36 × 4,022.68
  4. Step 4: Simplify right side
    12,787.08x = 77,168,518.60
  5. Step 5: Solve for x
    x = 77,168,518.60/12,787.08
  6. Step 6: Final answer
    x = 6,034.88

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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.