Home / 8,509-18,247

Finding the Third Proportional to 8,509 and 18,247

Calculator

Solution

The third proportional to 8,509 and 18,247 is: 39,129.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,509 : 18,247 = 18,247 : x
  2. Step 2: Convert to fraction form
    8,509/18,247 = 18,247/x
  3. Step 3: Cross multiply
    8,509x = 18,247 × 18,247
  4. Step 4: Simplify right side
    8,509x = 332,953,009
  5. Step 5: Solve for x
    x = 332,953,009/8,509
  6. Step 6: Final answer
    x = 39,129.51

Related Problems

Find third proportional to 4,254.50 and 9,123.50
Half scale
Find third proportional to 17,018 and 36,494
Double scale
Find third proportional to 8,511 and 18,251
Similar ratio
Find third proportional to 12,763.50 and 27,370.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.