Home / 12,855.24-17,742.23-7,821.04

Finding the Fourth Proportional to 12,855.24, 17,742.23 and 7,821.04

Calculator

Solution

The fourth proportional to 12,855.24, 17,742.23 and 7,821.04 is: 10,794.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,855.24 : 17,742.23 = 7,821.04 : x
  2. Step 2: Convert to fraction form
    12,855.24/17,742.23 = 7,821.04/x
  3. Step 3: Cross multiply
    12,855.24x = 17,742.23 × 7,821.04
  4. Step 4: Simplify right side
    12,855.24x = 138,762,690.52
  5. Step 5: Solve for x
    x = 138,762,690.52/12,855.24
  6. Step 6: Final answer
    x = 10,794.25

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.