Home / 12,974.78-19,469.73-5,477.87

Finding the Fourth Proportional to 12,974.78, 19,469.73 and 5,477.87

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Solution

The fourth proportional to 12,974.78, 19,469.73 and 5,477.87 is: 8,220.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,974.78 : 19,469.73 = 5,477.87 : x
  2. Step 2: Convert to fraction form
    12,974.78/19,469.73 = 5,477.87/x
  3. Step 3: Cross multiply
    12,974.78x = 19,469.73 × 5,477.87
  4. Step 4: Simplify right side
    12,974.78x = 106,652,649.88
  5. Step 5: Solve for x
    x = 106,652,649.88/12,974.78
  6. Step 6: Final answer
    x = 8,220.00

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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.