Home / 8,436-19,818

Finding the Third Proportional to 8,436 and 19,818

Calculator

Solution

The third proportional to 8,436 and 19,818 is: 46,556.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,436 : 19,818 = 19,818 : x
  2. Step 2: Convert to fraction form
    8,436/19,818 = 19,818/x
  3. Step 3: Cross multiply
    8,436x = 19,818 × 19,818
  4. Step 4: Simplify right side
    8,436x = 392,753,124
  5. Step 5: Solve for x
    x = 392,753,124/8,436
  6. Step 6: Final answer
    x = 46,556.80

Related Problems

Find third proportional to 4,218 and 9,909
Half scale
Find third proportional to 16,872 and 39,636
Double scale
Find third proportional to 8,438 and 19,823
Similar ratio
Find third proportional to 12,654 and 29,727
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.