Home / 7,876.80-10,869.60-4,520.16

Finding the Fourth Proportional to 7,876.80, 10,869.60 and 4,520.16

Calculator

Solution

The fourth proportional to 7,876.80, 10,869.60 and 4,520.16 is: 6,237.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876.80 : 10,869.60 = 4,520.16 : x
  2. Step 2: Convert to fraction form
    7,876.80/10,869.60 = 4,520.16/x
  3. Step 3: Cross multiply
    7,876.80x = 10,869.60 × 4,520.16
  4. Step 4: Simplify right side
    7,876.80x = 49,132,331.14
  5. Step 5: Solve for x
    x = 49,132,331.14/7,876.80
  6. Step 6: Final answer
    x = 6,237.60

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.