Home / 8,442-18,438

Finding the Third Proportional to 8,442 and 18,438

Calculator

Solution

The third proportional to 8,442 and 18,438 is: 40,270.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,442 : 18,438 = 18,438 : x
  2. Step 2: Convert to fraction form
    8,442/18,438 = 18,438/x
  3. Step 3: Cross multiply
    8,442x = 18,438 × 18,438
  4. Step 4: Simplify right side
    8,442x = 339,959,844
  5. Step 5: Solve for x
    x = 339,959,844/8,442
  6. Step 6: Final answer
    x = 40,270.06

Related Problems

Find third proportional to 4,221 and 9,219
Half scale
Find third proportional to 16,884 and 36,876
Double scale
Find third proportional to 8,444 and 18,442
Similar ratio
Find third proportional to 12,663 and 27,657
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.