Home / 25,728-38,592-7,260

Finding the Fourth Proportional to 25,728, 38,592 and 7,260

Calculator

Solution

The fourth proportional to 25,728, 38,592 and 7,260 is: 10,890

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728 : 38,592 = 7,260 : x
  2. Step 2: Convert to fraction form
    25,728/38,592 = 7,260/x
  3. Step 3: Cross multiply
    25,728x = 38,592 × 7,260
  4. Step 4: Simplify right side
    25,728x = 280,177,920
  5. Step 5: Solve for x
    x = 280,177,920/25,728
  6. Step 6: Final answer
    x = 10,890

Related Problems

Find fourth proportional to 12,864, 19,296 and 3,630
Half scale
Find fourth proportional to 51,456, 77,184 and 14,520
Double scale
Find fourth proportional to 25,729, 38,593.50 and 7,261
Similar ratio
Find fourth proportional to 38,592, 57,888 and 10,890
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.