Home / 6,807-12,138

Finding the Third Proportional to 6,807 and 12,138

Calculator

Solution

The third proportional to 6,807 and 12,138 is: 21,644.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,807 : 12,138 = 12,138 : x
  2. Step 2: Convert to fraction form
    6,807/12,138 = 12,138/x
  3. Step 3: Cross multiply
    6,807x = 12,138 × 12,138
  4. Step 4: Simplify right side
    6,807x = 147,331,044
  5. Step 5: Solve for x
    x = 147,331,044/6,807
  6. Step 6: Final answer
    x = 21,644.05

Related Problems

Find third proportional to 3,403.50 and 6,069
Half scale
Find third proportional to 13,614 and 24,276
Double scale
Find third proportional to 6,809 and 12,142
Similar ratio
Find third proportional to 10,210.50 and 18,207
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.