Home / 13,149.72-18,143.64-7,843.50

Finding the Fourth Proportional to 13,149.72, 18,143.64 and 7,843.50

Calculator

Solution

The fourth proportional to 13,149.72, 18,143.64 and 7,843.50 is: 10,822.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149.72 : 18,143.64 = 7,843.50 : x
  2. Step 2: Convert to fraction form
    13,149.72/18,143.64 = 7,843.50/x
  3. Step 3: Cross multiply
    13,149.72x = 18,143.64 × 7,843.50
  4. Step 4: Simplify right side
    13,149.72x = 142,309,640.34
  5. Step 5: Solve for x
    x = 142,309,640.34/13,149.72
  6. Step 6: Final answer
    x = 10,822.26

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.