Home / 8,115-12,530

Finding the Third Proportional to 8,115 and 12,530

Calculator

Solution

The third proportional to 8,115 and 12,530 is: 19,347.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115 : 12,530 = 12,530 : x
  2. Step 2: Convert to fraction form
    8,115/12,530 = 12,530/x
  3. Step 3: Cross multiply
    8,115x = 12,530 × 12,530
  4. Step 4: Simplify right side
    8,115x = 157,000,900
  5. Step 5: Solve for x
    x = 157,000,900/8,115
  6. Step 6: Final answer
    x = 19,347.00

Related Problems

Find third proportional to 4,057.50 and 6,265
Half scale
Find third proportional to 16,230 and 25,060
Double scale
Find third proportional to 8,117 and 12,533
Similar ratio
Find third proportional to 12,172.50 and 18,795
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.