Home / 11,392-18,872

Finding the Third Proportional to 11,392 and 18,872

Calculator

Solution

The third proportional to 11,392 and 18,872 is: 31,263.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392 : 18,872 = 18,872 : x
  2. Step 2: Convert to fraction form
    11,392/18,872 = 18,872/x
  3. Step 3: Cross multiply
    11,392x = 18,872 × 18,872
  4. Step 4: Simplify right side
    11,392x = 356,152,384
  5. Step 5: Solve for x
    x = 356,152,384/11,392
  6. Step 6: Final answer
    x = 31,263.38

Related Problems

Find third proportional to 5,696 and 9,436
Half scale
Find third proportional to 22,784 and 37,744
Double scale
Find third proportional to 11,394 and 18,875
Similar ratio
Find third proportional to 17,088 and 28,308
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.