Home / 19,240-28,860-6,928

Finding the Fourth Proportional to 19,240, 28,860 and 6,928

Calculator

Solution

The fourth proportional to 19,240, 28,860 and 6,928 is: 10,392

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,240 : 28,860 = 6,928 : x
  2. Step 2: Convert to fraction form
    19,240/28,860 = 6,928/x
  3. Step 3: Cross multiply
    19,240x = 28,860 × 6,928
  4. Step 4: Simplify right side
    19,240x = 199,942,080
  5. Step 5: Solve for x
    x = 199,942,080/19,240
  6. Step 6: Final answer
    x = 10,392

Related Problems

Find fourth proportional to 9,620, 14,430 and 3,464
Half scale
Find fourth proportional to 38,480, 57,720 and 13,856
Double scale
Find fourth proportional to 19,241, 28,861.50 and 6,929
Similar ratio
Find fourth proportional to 28,860, 43,290 and 10,392
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.