Home / 10,987.50-15,108

Finding the Third Proportional to 10,987.50 and 15,108

Calculator

Solution

The third proportional to 10,987.50 and 15,108 is: 20,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.50 : 15,108 = 15,108 : x
  2. Step 2: Convert to fraction form
    10,987.50/15,108 = 15,108/x
  3. Step 3: Cross multiply
    10,987.50x = 15,108 × 15,108
  4. Step 4: Simplify right side
    10,987.50x = 228,251,664
  5. Step 5: Solve for x
    x = 228,251,664/10,987.50
  6. Step 6: Final answer
    x = 20,773.76

Related Problems

Find third proportional to 5,493.75 and 7,554
Half scale
Find third proportional to 21,975 and 30,216
Double scale
Find third proportional to 10,990 and 15,111
Similar ratio
Find third proportional to 16,481.25 and 22,662
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.