Home / 10,078-15,117-3,922

Finding the Fourth Proportional to 10,078, 15,117 and 3,922

Calculator

Solution

The fourth proportional to 10,078, 15,117 and 3,922 is: 5,883

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078 : 15,117 = 3,922 : x
  2. Step 2: Convert to fraction form
    10,078/15,117 = 3,922/x
  3. Step 3: Cross multiply
    10,078x = 15,117 × 3,922
  4. Step 4: Simplify right side
    10,078x = 59,288,874
  5. Step 5: Solve for x
    x = 59,288,874/10,078
  6. Step 6: Final answer
    x = 5,883

Related Problems

Find fourth proportional to 5,039, 7,558.50 and 1,961
Half scale
Find fourth proportional to 20,156, 30,234 and 7,844
Double scale
Find fourth proportional to 10,079, 15,118.50 and 3,923
Similar ratio
Find fourth proportional to 15,117, 22,675.50 and 5,883
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.