Home / 14,137.72-19,513.60-8,172.86

Finding the Fourth Proportional to 14,137.72, 19,513.60 and 8,172.86

Calculator

Solution

The fourth proportional to 14,137.72, 19,513.60 and 8,172.86 is: 11,280.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,137.72 : 19,513.60 = 8,172.86 : x
  2. Step 2: Convert to fraction form
    14,137.72/19,513.60 = 8,172.86/x
  3. Step 3: Cross multiply
    14,137.72x = 19,513.60 × 8,172.86
  4. Step 4: Simplify right side
    14,137.72x = 159,481,920.90
  5. Step 5: Solve for x
    x = 159,481,920.90/14,137.72
  6. Step 6: Final answer
    x = 11,280.60

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.