Home / 11,078.88-16,618.32-8,772

Finding the Fourth Proportional to 11,078.88, 16,618.32 and 8,772

Calculator

Solution

The fourth proportional to 11,078.88, 16,618.32 and 8,772 is: 13,158

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.88 : 16,618.32 = 8,772 : x
  2. Step 2: Convert to fraction form
    11,078.88/16,618.32 = 8,772/x
  3. Step 3: Cross multiply
    11,078.88x = 16,618.32 × 8,772
  4. Step 4: Simplify right side
    11,078.88x = 145,775,903.04
  5. Step 5: Solve for x
    x = 145,775,903.04/11,078.88
  6. Step 6: Final answer
    x = 13,158

Related Problems

Find fourth proportional to 5,539.44, 8,309.16 and 4,386
Half scale
Find fourth proportional to 22,157.76, 33,236.64 and 17,544
Double scale
Find fourth proportional to 11,079.88, 16,619.82 and 8,773
Similar ratio
Find fourth proportional to 16,618.32, 24,927.48 and 13,158
1.5x scale

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.