Tools
Calculators
Step-by-step calculators to help you solve proportional relationship problems, find unit rates, and more.
Core Proportional Relationships
Proportional Relationship Calculator with Steps
Solve proportional relationship problems, find missing values, and see step-by-step explanations with examples.
y = kx
Constant of Proportionality Calculator
Find the constant of proportionality from tables, graphs, equations, or word problems.
k = y ÷ x = Δy ÷ Δx
Equivalent Ratios Calculator
Generate equivalent ratios, simplify ratios, and understand how ratio tables work.
a : b = a×n : b×n
Proportion Solver with Cross Multiplication Steps
Solve proportions and missing values using step-by-step cross multiplication.
a × d = b × c
Ratio Simplifier Calculator
Simplify ratios instantly and learn each reduction step using GCF logic.
a:b = (a÷GCF) : (b÷GCF)
Unit Rate
Constant of Proportionality & Slope
Scale Factor Calculator for Similar Figures
Find scale factor, enlarge or reduce figures, and connect scale to proportional reasoning.
Scale Factor = New ÷ Original
Slope and Unit Rate Calculator
Compare slope and unit rate, and see when they describe the same constant relationship.
Slope = (y₂ - y₁) ÷ (x₂ - x₁)