Home / 11,618-15,903

Finding the Third Proportional to 11,618 and 15,903

Calculator

Solution

The third proportional to 11,618 and 15,903 is: 21,768.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,618 : 15,903 = 15,903 : x
  2. Step 2: Convert to fraction form
    11,618/15,903 = 15,903/x
  3. Step 3: Cross multiply
    11,618x = 15,903 × 15,903
  4. Step 4: Simplify right side
    11,618x = 252,905,409
  5. Step 5: Solve for x
    x = 252,905,409/11,618
  6. Step 6: Final answer
    x = 21,768.41

Related Problems

Find third proportional to 5,809 and 7,951.50
Half scale
Find third proportional to 23,236 and 31,806
Double scale
Find third proportional to 11,620 and 15,906
Similar ratio
Find third proportional to 17,427 and 23,854.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.