Home / 8,388-18,347

Finding the Third Proportional to 8,388 and 18,347

Calculator

Solution

The third proportional to 8,388 and 18,347 is: 40,130.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,388 : 18,347 = 18,347 : x
  2. Step 2: Convert to fraction form
    8,388/18,347 = 18,347/x
  3. Step 3: Cross multiply
    8,388x = 18,347 × 18,347
  4. Step 4: Simplify right side
    8,388x = 336,612,409
  5. Step 5: Solve for x
    x = 336,612,409/8,388
  6. Step 6: Final answer
    x = 40,130.23

Related Problems

Find third proportional to 4,194 and 9,173.50
Half scale
Find third proportional to 16,776 and 36,694
Double scale
Find third proportional to 8,390 and 18,351
Similar ratio
Find third proportional to 12,582 and 27,520.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.