Home / 12,104-15,840

Finding the Third Proportional to 12,104 and 15,840

Calculator

Solution

The third proportional to 12,104 and 15,840 is: 20,729.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,104 : 15,840 = 15,840 : x
  2. Step 2: Convert to fraction form
    12,104/15,840 = 15,840/x
  3. Step 3: Cross multiply
    12,104x = 15,840 × 15,840
  4. Step 4: Simplify right side
    12,104x = 250,905,600
  5. Step 5: Solve for x
    x = 250,905,600/12,104
  6. Step 6: Final answer
    x = 20,729.15

Related Problems

Find third proportional to 6,052 and 7,920
Half scale
Find third proportional to 24,208 and 31,680
Double scale
Find third proportional to 12,106 and 15,843
Similar ratio
Find third proportional to 18,156 and 23,760
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.