Home / 8,354.78-11,534.91-5,215.58

Finding the Fourth Proportional to 8,354.78, 11,534.91 and 5,215.58

Calculator

Solution

The fourth proportional to 8,354.78, 11,534.91 and 5,215.58 is: 7,200.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,354.78 : 11,534.91 = 5,215.58 : x
  2. Step 2: Convert to fraction form
    8,354.78/11,534.91 = 5,215.58/x
  3. Step 3: Cross multiply
    8,354.78x = 11,534.91 × 5,215.58
  4. Step 4: Simplify right side
    8,354.78x = 60,161,245.90
  5. Step 5: Solve for x
    x = 60,161,245.90/8,354.78
  6. Step 6: Final answer
    x = 7,200.82

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.