Home / 15,972-18,900

Finding the Third Proportional to 15,972 and 18,900

Calculator

Solution

The third proportional to 15,972 and 18,900 is: 22,364.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,972 : 18,900 = 18,900 : x
  2. Step 2: Convert to fraction form
    15,972/18,900 = 18,900/x
  3. Step 3: Cross multiply
    15,972x = 18,900 × 18,900
  4. Step 4: Simplify right side
    15,972x = 357,210,000
  5. Step 5: Solve for x
    x = 357,210,000/15,972
  6. Step 6: Final answer
    x = 22,364.76

Related Problems

Find third proportional to 7,986 and 9,450
Half scale
Find third proportional to 31,944 and 37,800
Double scale
Find third proportional to 15,974 and 18,902
Similar ratio
Find third proportional to 23,958 and 28,350
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.