Home / 76,996-115,494-18,628

Finding the Fourth Proportional to 76,996, 115,494 and 18,628

Calculator

Solution

The fourth proportional to 76,996, 115,494 and 18,628 is: 27,942

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,996 : 115,494 = 18,628 : x
  2. Step 2: Convert to fraction form
    76,996/115,494 = 18,628/x
  3. Step 3: Cross multiply
    76,996x = 115,494 × 18,628
  4. Step 4: Simplify right side
    76,996x = 2,151,422,232
  5. Step 5: Solve for x
    x = 2,151,422,232/76,996
  6. Step 6: Final answer
    x = 27,942

Related Problems

Find fourth proportional to 38,498, 57,747 and 9,314
Half scale
Find fourth proportional to 153,992, 230,988 and 37,256
Double scale
Find fourth proportional to 76,997, 115,495.50 and 18,629
Similar ratio
Find fourth proportional to 115,494, 173,241 and 27,942
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.