# SSC Mathematics Note 11th Chapter Algebraic Ratio and Proportion

SSC Mathematics Note 11th Chapter Algebraic Ratio and Proportion. It is important for us to have a clear concept of ratio and proportion. Arithmetical ratio and proportion have been elaborately discussed in class VII. In this chapter, algebraic ratio and proportion will be discussed. We regularly use the concept of ratio and proportion in construction materials and in the production of food staff, in consumers production, in using fertilizer inland, in making the shapes and design of many things attractive and good looking and in many areas of our daily activities. Many problems of daily lives can be solved by using ratio and proportion.

## SSC Mathematics Note 11th Chapter Algebraic Ratio and Proportion

If four quantities are such that the ratio of first and second quantities is equal to the ratio of third and fourth quantities, those four quantities form a proportion. If *a*, *b*, *c*, *d *are four such quantities, we write *a *: *b *= *c *: *d*. The four quantities of proportion need not be of same kinds. The two quantities of the ratio are to be of the same kind only.

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