Home / 10,420.10-14,380.04-5,704.68

Finding the Fourth Proportional to 10,420.10, 14,380.04 and 5,704.68

Calculator

Solution

The fourth proportional to 10,420.10, 14,380.04 and 5,704.68 is: 7,872.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,420.10 : 14,380.04 = 5,704.68 : x
  2. Step 2: Convert to fraction form
    10,420.10/14,380.04 = 5,704.68/x
  3. Step 3: Cross multiply
    10,420.10x = 14,380.04 × 5,704.68
  4. Step 4: Simplify right side
    10,420.10x = 82,033,526.59
  5. Step 5: Solve for x
    x = 82,033,526.59/10,420.10
  6. Step 6: Final answer
    x = 7,872.62

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.