Home / 12,240-18,342

Finding the Third Proportional to 12,240 and 18,342

Calculator

Solution

The third proportional to 12,240 and 18,342 is: 27,486.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240 : 18,342 = 18,342 : x
  2. Step 2: Convert to fraction form
    12,240/18,342 = 18,342/x
  3. Step 3: Cross multiply
    12,240x = 18,342 × 18,342
  4. Step 4: Simplify right side
    12,240x = 336,428,964
  5. Step 5: Solve for x
    x = 336,428,964/12,240
  6. Step 6: Final answer
    x = 27,486.03

Related Problems

Find third proportional to 6,120 and 9,171
Half scale
Find third proportional to 24,480 and 36,684
Double scale
Find third proportional to 12,242 and 18,345
Similar ratio
Find third proportional to 18,360 and 27,513
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.