When you say SAS 9.4, I think you're referring to the Base SAS http://www.sas.com/en_us/software/base-sas.html
The solutions are a larger collection of software - they typically include Base as part of the offering (they may include additional analytical and solution specific procs as well as product specific macros), but also databases, SAS/ACCESS engines, Web components (application servers and web applications) as well as other products like Visual Analytics and Enterprise Business Intelligence.
They would be licensed at an additional cost beyond Base.