Home / 8,679-18,738

Finding the Third Proportional to 8,679 and 18,738

Calculator

Solution

The third proportional to 8,679 and 18,738 is: 40,455.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679 : 18,738 = 18,738 : x
  2. Step 2: Convert to fraction form
    8,679/18,738 = 18,738/x
  3. Step 3: Cross multiply
    8,679x = 18,738 × 18,738
  4. Step 4: Simplify right side
    8,679x = 351,112,644
  5. Step 5: Solve for x
    x = 351,112,644/8,679
  6. Step 6: Final answer
    x = 40,455.43

Related Problems

Find third proportional to 4,339.50 and 9,369
Half scale
Find third proportional to 17,358 and 37,476
Double scale
Find third proportional to 8,681 and 18,742
Similar ratio
Find third proportional to 13,018.50 and 28,107
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.