Home / 8,160-18,144

Finding the Third Proportional to 8,160 and 18,144

Calculator

Solution

The third proportional to 8,160 and 18,144 is: 40,343.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160 : 18,144 = 18,144 : x
  2. Step 2: Convert to fraction form
    8,160/18,144 = 18,144/x
  3. Step 3: Cross multiply
    8,160x = 18,144 × 18,144
  4. Step 4: Simplify right side
    8,160x = 329,204,736
  5. Step 5: Solve for x
    x = 329,204,736/8,160
  6. Step 6: Final answer
    x = 40,343.72

Related Problems

Find third proportional to 4,080 and 9,072
Half scale
Find third proportional to 16,320 and 36,288
Double scale
Find third proportional to 8,162 and 18,148
Similar ratio
Find third proportional to 12,240 and 27,216
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.