Home / 16,767-23,139-9,315

Finding the Fourth Proportional to 16,767, 23,139 and 9,315

Calculator

Solution

The fourth proportional to 16,767, 23,139 and 9,315 is: 12,855

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,767 : 23,139 = 9,315 : x
  2. Step 2: Convert to fraction form
    16,767/23,139 = 9,315/x
  3. Step 3: Cross multiply
    16,767x = 23,139 × 9,315
  4. Step 4: Simplify right side
    16,767x = 215,539,785
  5. Step 5: Solve for x
    x = 215,539,785/16,767
  6. Step 6: Final answer
    x = 12,855

Related Problems

Find fourth proportional to 8,383.50, 11,569.50 and 4,657.50
Half scale
Find fourth proportional to 33,534, 46,278 and 18,630
Double scale
Find fourth proportional to 16,768, 23,140.38 and 9,316
Similar ratio
Find fourth proportional to 25,150.50, 34,708.50 and 13,972.50
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.