As others have stated, this example lends itself to a 3 degree path (30 nm for 10.000 feet, or 3 nm
pr 1000 feet). To fly 3 degree path, take half your groundspeed and put on a zero - 1250. So take 1300-1400-1500 for comfort, and crosscheck altitude every 3 miles (27 to go, 24 to go, 21 to go etc).
If you fly a fancy EFIS equipped type, you could enter the constraint into the FMS and fly it in VNAV, or you could fly in VS and use that fancy arc that comes up, to put it on or slightly ahead of your waypoint
