Home / 12,112.50-18,168.75-3,904.50

Finding the Fourth Proportional to 12,112.50, 18,168.75 and 3,904.50

Calculator

Solution

The fourth proportional to 12,112.50, 18,168.75 and 3,904.50 is: 5,856.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.50 : 18,168.75 = 3,904.50 : x
  2. Step 2: Convert to fraction form
    12,112.50/18,168.75 = 3,904.50/x
  3. Step 3: Cross multiply
    12,112.50x = 18,168.75 × 3,904.50
  4. Step 4: Simplify right side
    12,112.50x = 70,939,884.38
  5. Step 5: Solve for x
    x = 70,939,884.38/12,112.50
  6. Step 6: Final answer
    x = 5,856.75

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.