Home / 8,558.64-12,867.24-7,917.36

Finding the Fourth Proportional to 8,558.64, 12,867.24 and 7,917.36

Calculator

Solution

The fourth proportional to 8,558.64, 12,867.24 and 7,917.36 is: 11,903.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,558.64 : 12,867.24 = 7,917.36 : x
  2. Step 2: Convert to fraction form
    8,558.64/12,867.24 = 7,917.36/x
  3. Step 3: Cross multiply
    8,558.64x = 12,867.24 × 7,917.36
  4. Step 4: Simplify right side
    8,558.64x = 101,874,571.29
  5. Step 5: Solve for x
    x = 101,874,571.29/8,558.64
  6. Step 6: Final answer
    x = 11,903.13

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.