Home / 8,788-18,912

Finding the Third Proportional to 8,788 and 18,912

Calculator

Solution

The third proportional to 8,788 and 18,912 is: 40,699.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788 : 18,912 = 18,912 : x
  2. Step 2: Convert to fraction form
    8,788/18,912 = 18,912/x
  3. Step 3: Cross multiply
    8,788x = 18,912 × 18,912
  4. Step 4: Simplify right side
    8,788x = 357,663,744
  5. Step 5: Solve for x
    x = 357,663,744/8,788
  6. Step 6: Final answer
    x = 40,699.11

Related Problems

Find third proportional to 4,394 and 9,456
Half scale
Find third proportional to 17,576 and 37,824
Double scale
Find third proportional to 8,790 and 18,916
Similar ratio
Find third proportional to 13,182 and 28,368
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.