The cloud facilitates application scaling by providing on-demand access to computing resources such as storage, processing power, and network capabilities. This scalability enables businesses to adjust their infrastructure based on user demand without the need for significant investment in physical hardware. For instance, cloud service providers offer services that allow applications to automatically handle increased load by distributing the demand across multiple servers. This approach not only enhances performance and reliability but also allows organizations to maintain cost-effectiveness by paying only for the resources they actually use, promoting business agility.