Home / 12,640.54-18,963.60-4,849.36

Finding the Fourth Proportional to 12,640.54, 18,963.60 and 4,849.36

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Solution

The fourth proportional to 12,640.54, 18,963.60 and 4,849.36 is: 7,275.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640.54 : 18,963.60 = 4,849.36 : x
  2. Step 2: Convert to fraction form
    12,640.54/18,963.60 = 4,849.36/x
  3. Step 3: Cross multiply
    12,640.54x = 18,963.60 × 4,849.36
  4. Step 4: Simplify right side
    12,640.54x = 91,961,323.30
  5. Step 5: Solve for x
    x = 91,961,323.30/12,640.54
  6. Step 6: Final answer
    x = 7,275.11

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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.