Home / 26,454-39,687.60-7,986

Finding the Fourth Proportional to 26,454, 39,687.60 and 7,986

Calculator

Solution

The fourth proportional to 26,454, 39,687.60 and 7,986 is: 11,980.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,454 : 39,687.60 = 7,986 : x
  2. Step 2: Convert to fraction form
    26,454/39,687.60 = 7,986/x
  3. Step 3: Cross multiply
    26,454x = 39,687.60 × 7,986
  4. Step 4: Simplify right side
    26,454x = 316,945,173.60
  5. Step 5: Solve for x
    x = 316,945,173.60/26,454
  6. Step 6: Final answer
    x = 11,980.99

Related Problems

Find fourth proportional to 13,227, 19,843.80 and 3,993
Half scale
Find fourth proportional to 52,908, 79,375.20 and 15,972
Double scale
Find fourth proportional to 26,455, 39,689.10 and 7,987
Similar ratio
Find fourth proportional to 39,681, 59,531.40 and 11,979
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.