Home / 9,328.10-12,872.78-5,136.35

Finding the Fourth Proportional to 9,328.10, 12,872.78 and 5,136.35

Calculator

Solution

The fourth proportional to 9,328.10, 12,872.78 and 5,136.35 is: 7,088.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.10 : 12,872.78 = 5,136.35 : x
  2. Step 2: Convert to fraction form
    9,328.10/12,872.78 = 5,136.35/x
  3. Step 3: Cross multiply
    9,328.10x = 12,872.78 × 5,136.35
  4. Step 4: Simplify right side
    9,328.10x = 66,119,103.55
  5. Step 5: Solve for x
    x = 66,119,103.55/9,328.10
  6. Step 6: Final answer
    x = 7,088.16

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.