Home / 13,688.09-20,531.96-3,299.75

Finding the Fourth Proportional to 13,688.09, 20,531.96 and 3,299.75

Calculator

Solution

The fourth proportional to 13,688.09, 20,531.96 and 3,299.75 is: 4,949.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.09 : 20,531.96 = 3,299.75 : x
  2. Step 2: Convert to fraction form
    13,688.09/20,531.96 = 3,299.75/x
  3. Step 3: Cross multiply
    13,688.09x = 20,531.96 × 3,299.75
  4. Step 4: Simplify right side
    13,688.09x = 67,750,318.51
  5. Step 5: Solve for x
    x = 67,750,318.51/13,688.09
  6. Step 6: Final answer
    x = 4,949.58

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.