Home / 8,100-11,178-4,374

Finding the Fourth Proportional to 8,100, 11,178 and 4,374

Calculator

Solution

The fourth proportional to 8,100, 11,178 and 4,374 is: 6,036.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100 : 11,178 = 4,374 : x
  2. Step 2: Convert to fraction form
    8,100/11,178 = 4,374/x
  3. Step 3: Cross multiply
    8,100x = 11,178 × 4,374
  4. Step 4: Simplify right side
    8,100x = 48,892,572
  5. Step 5: Solve for x
    x = 48,892,572/8,100
  6. Step 6: Final answer
    x = 6,036.12

Related Problems

Find fourth proportional to 4,050, 5,589 and 2,187
Half scale
Find fourth proportional to 16,200, 22,356 and 8,748
Double scale
Find fourth proportional to 8,101, 11,179.38 and 4,375
Similar ratio
Find fourth proportional to 12,150, 16,767 and 6,561
1.5x scale

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.