Here are some examples of how it can be used in a sentence:
* Praktikal ang mga payo niya. (His advice is practical.)
* Mas praktikal ang gamitin na sapatos na pang-sports sa paglalakad. (It's more practical to wear sports shoes when walking.)
* Praktikal na solusyon ang iniharap niya sa problema. (He presented a practical solution to the problem.)
You can also use the word mapapakinabangan which means "useful" or "beneficial" to express the same idea as "practical".
* Mapapakinabangan ang kanyang kaalaman sa trabaho. (His knowledge is beneficial to the job.)
* Mapapakinabangan ang bagong programa sa pag-aaral. (The new learning program is useful.)
Remember that Tagalog, like any other language, has nuances in meaning. The best way to understand the context of the word "practical" is to consider the whole sentence and the situation it is referring to.