6A5 Solve Proportions Using Means & Extremes
 In equivalent ratios, the product of the meansis equal to the product of the extremes.*means are the middle numbers*extremes are the outside numbersSolve Proportions UsingMeans & Extremes3:5 = 6:105×6 = 3×10 In equivalent fractions, the cross productsare equal.In equivalent ratios, the product of the meansis equal to the product of the extremes.Ratios as fractions:3:5 = 6:105×6 = 3×1035= 610 ***You may use a calculator for this quiz!Step 2: Divide both sides bythe coefficient of the variable:Step 1: Cross multiplyFinding a missing value usingmeans and extremes (cross products).3×6 = 4×n344.5 = n18 = 4n÷4=÷4 n 6 Write the cross products in an equation.49Solve the equation.n =n ==6n Write the cross products in an equation.n8Solve the equation.n =n ==35 Write the cross products in an equation.12nSolve the equation.n =n ==87 Write the cross products in an equation.104Solve the equation.n =n ==18n Write the cross products in an equation.208Solve the equation.n =n ==15n Write the cross products in an equation.20nSolve the equation.n =n ==3012 Write the cross products in an equation.14nSolve the equation.n =n ==54
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