Home / 10,115.76-15,175.68-4,272.36

Finding the Fourth Proportional to 10,115.76, 15,175.68 and 4,272.36

Calculator

Solution

The fourth proportional to 10,115.76, 15,175.68 and 4,272.36 is: 6,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.76 : 15,175.68 = 4,272.36 : x
  2. Step 2: Convert to fraction form
    10,115.76/15,175.68 = 4,272.36/x
  3. Step 3: Cross multiply
    10,115.76x = 15,175.68 × 4,272.36
  4. Step 4: Simplify right side
    10,115.76x = 64,835,968.20
  5. Step 5: Solve for x
    x = 64,835,968.20/10,115.76
  6. Step 6: Final answer
    x = 6,409.40

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.