Home / 7,172-7,828

Finding the Third Proportional to 7,172 and 7,828

Calculator

Solution

The third proportional to 7,172 and 7,828 is: 8,544.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172 : 7,828 = 7,828 : x
  2. Step 2: Convert to fraction form
    7,172/7,828 = 7,828/x
  3. Step 3: Cross multiply
    7,172x = 7,828 × 7,828
  4. Step 4: Simplify right side
    7,172x = 61,277,584
  5. Step 5: Solve for x
    x = 61,277,584/7,172
  6. Step 6: Final answer
    x = 8,544.00

Related Problems

Find third proportional to 3,586 and 3,914
Half scale
Find third proportional to 14,344 and 15,656
Double scale
Find third proportional to 7,174 and 7,830
Similar ratio
Find third proportional to 10,758 and 11,742
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.