Home / 12,152-15,420

Finding the Third Proportional to 12,152 and 15,420

Calculator

Solution

The third proportional to 12,152 and 15,420 is: 19,566.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152 : 15,420 = 15,420 : x
  2. Step 2: Convert to fraction form
    12,152/15,420 = 15,420/x
  3. Step 3: Cross multiply
    12,152x = 15,420 × 15,420
  4. Step 4: Simplify right side
    12,152x = 237,776,400
  5. Step 5: Solve for x
    x = 237,776,400/12,152
  6. Step 6: Final answer
    x = 19,566.85

Related Problems

Find third proportional to 6,076 and 7,710
Half scale
Find third proportional to 24,304 and 30,840
Double scale
Find third proportional to 12,154 and 15,423
Similar ratio
Find third proportional to 18,228 and 23,130
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.