Home / 8,310-11,439

Finding the Third Proportional to 8,310 and 11,439

Calculator

Solution

The third proportional to 8,310 and 11,439 is: 15,746.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,310 : 11,439 = 11,439 : x
  2. Step 2: Convert to fraction form
    8,310/11,439 = 11,439/x
  3. Step 3: Cross multiply
    8,310x = 11,439 × 11,439
  4. Step 4: Simplify right side
    8,310x = 130,850,721
  5. Step 5: Solve for x
    x = 130,850,721/8,310
  6. Step 6: Final answer
    x = 15,746.18

Related Problems

Find third proportional to 4,155 and 5,719.50
Half scale
Find third proportional to 16,620 and 22,878
Double scale
Find third proportional to 8,312 and 11,442
Similar ratio
Find third proportional to 12,465 and 17,158.50
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.