Home / 8,415-17,854

Finding the Third Proportional to 8,415 and 17,854

Calculator

Solution

The third proportional to 8,415 and 17,854 is: 37,880.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415 : 17,854 = 17,854 : x
  2. Step 2: Convert to fraction form
    8,415/17,854 = 17,854/x
  3. Step 3: Cross multiply
    8,415x = 17,854 × 17,854
  4. Step 4: Simplify right side
    8,415x = 318,765,316
  5. Step 5: Solve for x
    x = 318,765,316/8,415
  6. Step 6: Final answer
    x = 37,880.61

Related Problems

Find third proportional to 4,207.50 and 8,927
Half scale
Find third proportional to 16,830 and 35,708
Double scale
Find third proportional to 8,417 and 17,858
Similar ratio
Find third proportional to 12,622.50 and 26,781
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.