Home / 9,999-15,813

Finding the Third Proportional to 9,999 and 15,813

Calculator

Solution

The third proportional to 9,999 and 15,813 is: 25,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999 : 15,813 = 15,813 : x
  2. Step 2: Convert to fraction form
    9,999/15,813 = 15,813/x
  3. Step 3: Cross multiply
    9,999x = 15,813 × 15,813
  4. Step 4: Simplify right side
    9,999x = 250,050,969
  5. Step 5: Solve for x
    x = 250,050,969/9,999
  6. Step 6: Final answer
    x = 25,007.60

Related Problems

Find third proportional to 4,999.50 and 7,906.50
Half scale
Find third proportional to 19,998 and 31,626
Double scale
Find third proportional to 10,001 and 15,816
Similar ratio
Find third proportional to 14,998.50 and 23,719.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.