Home / 15,356-16,828

Finding the Third Proportional to 15,356 and 16,828

Calculator

Solution

The third proportional to 15,356 and 16,828 is: 18,441.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,356 : 16,828 = 16,828 : x
  2. Step 2: Convert to fraction form
    15,356/16,828 = 16,828/x
  3. Step 3: Cross multiply
    15,356x = 16,828 × 16,828
  4. Step 4: Simplify right side
    15,356x = 283,181,584
  5. Step 5: Solve for x
    x = 283,181,584/15,356
  6. Step 6: Final answer
    x = 18,441.10

Related Problems

Find third proportional to 7,678 and 8,414
Half scale
Find third proportional to 30,712 and 33,656
Double scale
Find third proportional to 15,358 and 16,830
Similar ratio
Find third proportional to 23,034 and 25,242
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.