Home / 12,794.78-19,190.82-3,435.77

Finding the Fourth Proportional to 12,794.78, 19,190.82 and 3,435.77

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Solution

The fourth proportional to 12,794.78, 19,190.82 and 3,435.77 is: 5,153.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,794.78 : 19,190.82 = 3,435.77 : x
  2. Step 2: Convert to fraction form
    12,794.78/19,190.82 = 3,435.77/x
  3. Step 3: Cross multiply
    12,794.78x = 19,190.82 × 3,435.77
  4. Step 4: Simplify right side
    12,794.78x = 65,935,243.63
  5. Step 5: Solve for x
    x = 65,935,243.63/12,794.78
  6. Step 6: Final answer
    x = 5,153.29

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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.