Home / 12,048-18,072-3,840

Finding the Fourth Proportional to 12,048, 18,072 and 3,840

Calculator

Solution

The fourth proportional to 12,048, 18,072 and 3,840 is: 5,760

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,048 : 18,072 = 3,840 : x
  2. Step 2: Convert to fraction form
    12,048/18,072 = 3,840/x
  3. Step 3: Cross multiply
    12,048x = 18,072 × 3,840
  4. Step 4: Simplify right side
    12,048x = 69,396,480
  5. Step 5: Solve for x
    x = 69,396,480/12,048
  6. Step 6: Final answer
    x = 5,760

Related Problems

Find fourth proportional to 6,024, 9,036 and 1,920
Half scale
Find fourth proportional to 24,096, 36,144 and 7,680
Double scale
Find fourth proportional to 12,049, 18,073.50 and 3,841
Similar ratio
Find fourth proportional to 18,072, 27,108 and 5,760
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.