Home / 8,387.76-12,580.91-2,840.99

Finding the Fourth Proportional to 8,387.76, 12,580.91 and 2,840.99

Calculator

Solution

The fourth proportional to 8,387.76, 12,580.91 and 2,840.99 is: 4,261.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.76 : 12,580.91 = 2,840.99 : x
  2. Step 2: Convert to fraction form
    8,387.76/12,580.91 = 2,840.99/x
  3. Step 3: Cross multiply
    8,387.76x = 12,580.91 × 2,840.99
  4. Step 4: Simplify right side
    8,387.76x = 35,742,162.39
  5. Step 5: Solve for x
    x = 35,742,162.39/8,387.76
  6. Step 6: Final answer
    x = 4,261.23

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.