Home / 12,631-19,815

Finding the Third Proportional to 12,631 and 19,815

Calculator

Solution

The third proportional to 12,631 and 19,815 is: 31,084.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631 : 19,815 = 19,815 : x
  2. Step 2: Convert to fraction form
    12,631/19,815 = 19,815/x
  3. Step 3: Cross multiply
    12,631x = 19,815 × 19,815
  4. Step 4: Simplify right side
    12,631x = 392,634,225
  5. Step 5: Solve for x
    x = 392,634,225/12,631
  6. Step 6: Final answer
    x = 31,084.97

Related Problems

Find third proportional to 6,315.50 and 9,907.50
Half scale
Find third proportional to 25,262 and 39,630
Double scale
Find third proportional to 12,633 and 19,818
Similar ratio
Find third proportional to 18,946.50 and 29,722.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.