Home / 13,711.50-18,922.01-7,424.01

Finding the Fourth Proportional to 13,711.50, 18,922.01 and 7,424.01

Calculator

Solution

The fourth proportional to 13,711.50, 18,922.01 and 7,424.01 is: 10,245.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.50 : 18,922.01 = 7,424.01 : x
  2. Step 2: Convert to fraction form
    13,711.50/18,922.01 = 7,424.01/x
  3. Step 3: Cross multiply
    13,711.50x = 18,922.01 × 7,424.01
  4. Step 4: Simplify right side
    13,711.50x = 140,477,154.34
  5. Step 5: Solve for x
    x = 140,477,154.34/13,711.50
  6. Step 6: Final answer
    x = 10,245.21

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.