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 June 10th, 2017, 06:22 AM #1 Newbie   Joined: Jun 2017 From: Germany Posts: 2 Thanks: 0 Weighted average? Dear Math community I'm struggling with a small math issue and I hope some of you can help. Assume we have a list of numbers 20000 45000 -1500 2444 -5000 sum: 60944 Now I want to take the first figure (20000) and split it across the 4 remaining sums according to their weight (if that makes sense). Is there a formula for a calculation like this? Thanks in advance
 June 10th, 2017, 12:50 PM #2 Global Moderator   Joined: May 2007 Posts: 6,510 Thanks: 584 My guess - use magnitudes for weights.
June 11th, 2017, 05:13 AM   #3
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Quote:
 Originally Posted by mathman My guess - use magnitudes for weights.
Could you please give me an example of how you would do the calculation?

 June 11th, 2017, 01:58 PM #4 Global Moderator   Joined: May 2007 Posts: 6,510 Thanks: 584 Total = 45000+1500+2444+5000. First weight = 45000/total, etc.

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