For the reaction below, the amounts at equilibrium in a 1.0 L container at a certain temperature are: 2.78 moles BaCl₂, 3.25 moles K₂SO₄, 3.71 moles BaSO₄, and 4.65 moles KCl. What is the equilibrium constant, K? Enter your answer with 3 sig figs.

BaCl₂ (aq) + K₂SO₄ (aq) ----> BaSO₄ (s) + 2KCl (aq)