Home / 4,990-12,106

Finding the Third Proportional to 4,990 and 12,106

Calculator

Solution

The third proportional to 4,990 and 12,106 is: 29,369.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990 : 12,106 = 12,106 : x
  2. Step 2: Convert to fraction form
    4,990/12,106 = 12,106/x
  3. Step 3: Cross multiply
    4,990x = 12,106 × 12,106
  4. Step 4: Simplify right side
    4,990x = 146,555,236
  5. Step 5: Solve for x
    x = 146,555,236/4,990
  6. Step 6: Final answer
    x = 29,369.79

Related Problems

Find third proportional to 2,495 and 6,053
Half scale
Find third proportional to 9,980 and 24,212
Double scale
Find third proportional to 4,992 and 12,111
Similar ratio
Find third proportional to 7,485 and 18,159
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.