Inverse proportion is a relationship between two variables where an increase in one variable results in a decrease in the other, and vice versa. This means that when one quantity doubles, the other quantity is halved. For example, if you have a fixed amount of work to do, the time taken to complete it is inversely proportional to the number of workers. More workers mean less time needed. In mathematical terms, if two variables, x and y, are inversely proportional, their product remains constant. This can be expressed as x * y = k, where k is a constant. Understanding inverse proportion is useful in various fields, including physics, economics, and everyday problem-solving.