Home / 13,824-20,736-4,590

Finding the Fourth Proportional to 13,824, 20,736 and 4,590

Calculator

Solution

The fourth proportional to 13,824, 20,736 and 4,590 is: 6,885

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824 : 20,736 = 4,590 : x
  2. Step 2: Convert to fraction form
    13,824/20,736 = 4,590/x
  3. Step 3: Cross multiply
    13,824x = 20,736 × 4,590
  4. Step 4: Simplify right side
    13,824x = 95,178,240
  5. Step 5: Solve for x
    x = 95,178,240/13,824
  6. Step 6: Final answer
    x = 6,885

Related Problems

Find fourth proportional to 6,912, 10,368 and 2,295
Half scale
Find fourth proportional to 27,648, 41,472 and 9,180
Double scale
Find fourth proportional to 13,825, 20,737.50 and 4,591
Similar ratio
Find fourth proportional to 20,736, 31,104 and 6,885
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.