Home / 13,286.94-18,336.81-7,318.61

Finding the Fourth Proportional to 13,286.94, 18,336.81 and 7,318.61

Calculator

Solution

The fourth proportional to 13,286.94, 18,336.81 and 7,318.61 is: 10,100.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286.94 : 18,336.81 = 7,318.61 : x
  2. Step 2: Convert to fraction form
    13,286.94/18,336.81 = 7,318.61/x
  3. Step 3: Cross multiply
    13,286.94x = 18,336.81 × 7,318.61
  4. Step 4: Simplify right side
    13,286.94x = 134,199,869.35
  5. Step 5: Solve for x
    x = 134,199,869.35/13,286.94
  6. Step 6: Final answer
    x = 10,100.13

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.