Home / 17,130-18,750

Finding the Third Proportional to 17,130 and 18,750

Calculator

Solution

The third proportional to 17,130 and 18,750 is: 20,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,130 : 18,750 = 18,750 : x
  2. Step 2: Convert to fraction form
    17,130/18,750 = 18,750/x
  3. Step 3: Cross multiply
    17,130x = 18,750 × 18,750
  4. Step 4: Simplify right side
    17,130x = 351,562,500
  5. Step 5: Solve for x
    x = 351,562,500/17,130
  6. Step 6: Final answer
    x = 20,523.20

Related Problems

Find third proportional to 8,565 and 9,375
Half scale
Find third proportional to 34,260 and 37,500
Double scale
Find third proportional to 17,132 and 18,752
Similar ratio
Find third proportional to 25,695 and 28,125
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.