Home / 4,138.50-8,688

Finding the Third Proportional to 4,138.50 and 8,688

Calculator

Solution

The third proportional to 4,138.50 and 8,688 is: 18,238.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.50 : 8,688 = 8,688 : x
  2. Step 2: Convert to fraction form
    4,138.50/8,688 = 8,688/x
  3. Step 3: Cross multiply
    4,138.50x = 8,688 × 8,688
  4. Step 4: Simplify right side
    4,138.50x = 75,481,344
  5. Step 5: Solve for x
    x = 75,481,344/4,138.50
  6. Step 6: Final answer
    x = 18,238.82

Related Problems

Find third proportional to 2,069.25 and 4,344
Half scale
Find third proportional to 8,277 and 17,376
Double scale
Find third proportional to 4,141 and 8,692
Similar ratio
Find third proportional to 6,207.75 and 13,032
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.