Home / 13,954-20,931-4,226

Finding the Fourth Proportional to 13,954, 20,931 and 4,226

Calculator

Solution

The fourth proportional to 13,954, 20,931 and 4,226 is: 6,339

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,954 : 20,931 = 4,226 : x
  2. Step 2: Convert to fraction form
    13,954/20,931 = 4,226/x
  3. Step 3: Cross multiply
    13,954x = 20,931 × 4,226
  4. Step 4: Simplify right side
    13,954x = 88,454,406
  5. Step 5: Solve for x
    x = 88,454,406/13,954
  6. Step 6: Final answer
    x = 6,339

Related Problems

Find fourth proportional to 6,977, 10,465.50 and 2,113
Half scale
Find fourth proportional to 27,908, 41,862 and 8,452
Double scale
Find fourth proportional to 13,955, 20,932.50 and 4,227
Similar ratio
Find fourth proportional to 20,931, 31,396.50 and 6,339
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.