Home / 12,797.78-19,199.46-3,913.85

Finding the Fourth Proportional to 12,797.78, 19,199.46 and 3,913.85

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Solution

The fourth proportional to 12,797.78, 19,199.46 and 3,913.85 is: 5,871.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,797.78 : 19,199.46 = 3,913.85 : x
  2. Step 2: Convert to fraction form
    12,797.78/19,199.46 = 3,913.85/x
  3. Step 3: Cross multiply
    12,797.78x = 19,199.46 × 3,913.85
  4. Step 4: Simplify right side
    12,797.78x = 75,143,710.52
  5. Step 5: Solve for x
    x = 75,143,710.52/12,797.78
  6. Step 6: Final answer
    x = 5,871.62

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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.