is it possible to shorten this, possibly array or sumproduct?

=(B4*Production!$K$3)+(C4*Production!$K$4)+(D4*Pro duction!$K$5)+(E4*Production!$K$6)+(F4*Production! $K$7)+(G4*Production!$K$8)+(H4*Production!$K$9)+(I 4*Production!$K$10)+(J4*Production!$K$11)+(K4*Prod uction!$K$12)+(L4*Production!$K$13)+(M4*Production !$K$14)+(N4*Production!$K$15)+(O4*Production!$K$16 )+(P4*Production!$K$17)+(Q4*Production!$K$18)+(R4* Production!$K$19)

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Gary