Home / 12,368-15,720

Finding the Third Proportional to 12,368 and 15,720

Calculator

Solution

The third proportional to 12,368 and 15,720 is: 19,980.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368 : 15,720 = 15,720 : x
  2. Step 2: Convert to fraction form
    12,368/15,720 = 15,720/x
  3. Step 3: Cross multiply
    12,368x = 15,720 × 15,720
  4. Step 4: Simplify right side
    12,368x = 247,118,400
  5. Step 5: Solve for x
    x = 247,118,400/12,368
  6. Step 6: Final answer
    x = 19,980.47

Related Problems

Find third proportional to 6,184 and 7,860
Half scale
Find third proportional to 24,736 and 31,440
Double scale
Find third proportional to 12,370 and 15,723
Similar ratio
Find third proportional to 18,552 and 23,580
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.