Home / 17,640-26,460-7,912

Finding the Fourth Proportional to 17,640, 26,460 and 7,912

Calculator

Solution

The fourth proportional to 17,640, 26,460 and 7,912 is: 11,868

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,640 : 26,460 = 7,912 : x
  2. Step 2: Convert to fraction form
    17,640/26,460 = 7,912/x
  3. Step 3: Cross multiply
    17,640x = 26,460 × 7,912
  4. Step 4: Simplify right side
    17,640x = 209,351,520
  5. Step 5: Solve for x
    x = 209,351,520/17,640
  6. Step 6: Final answer
    x = 11,868

Related Problems

Find fourth proportional to 8,820, 13,230 and 3,956
Half scale
Find fourth proportional to 35,280, 52,920 and 15,824
Double scale
Find fourth proportional to 17,641, 26,461.50 and 7,913
Similar ratio
Find fourth proportional to 26,460, 39,690 and 11,868
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.