Home / 7,950-18,405

Finding the Third Proportional to 7,950 and 18,405

Calculator

Solution

The third proportional to 7,950 and 18,405 is: 42,609.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,950 : 18,405 = 18,405 : x
  2. Step 2: Convert to fraction form
    7,950/18,405 = 18,405/x
  3. Step 3: Cross multiply
    7,950x = 18,405 × 18,405
  4. Step 4: Simplify right side
    7,950x = 338,744,025
  5. Step 5: Solve for x
    x = 338,744,025/7,950
  6. Step 6: Final answer
    x = 42,609.31

Related Problems

Find third proportional to 3,975 and 9,202.50
Half scale
Find third proportional to 15,900 and 36,810
Double scale
Find third proportional to 7,952 and 18,410
Similar ratio
Find third proportional to 11,925 and 27,607.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.