Home / 51,378-77,067-12,466

Finding the Fourth Proportional to 51,378, 77,067 and 12,466

Calculator

Solution

The fourth proportional to 51,378, 77,067 and 12,466 is: 18,699

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,378 : 77,067 = 12,466 : x
  2. Step 2: Convert to fraction form
    51,378/77,067 = 12,466/x
  3. Step 3: Cross multiply
    51,378x = 77,067 × 12,466
  4. Step 4: Simplify right side
    51,378x = 960,717,222
  5. Step 5: Solve for x
    x = 960,717,222/51,378
  6. Step 6: Final answer
    x = 18,699

Related Problems

Find fourth proportional to 25,689, 38,533.50 and 6,233
Half scale
Find fourth proportional to 102,756, 154,134 and 24,932
Double scale
Find fourth proportional to 51,379, 77,068.50 and 12,467
Similar ratio
Find fourth proportional to 77,067, 115,600.50 and 18,699
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.