Home / 26,641.05-39,961.56-7,921

Finding the Fourth Proportional to 26,641.05, 39,961.56 and 7,921

Calculator

Solution

The fourth proportional to 26,641.05, 39,961.56 and 7,921 is: 11,881.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,641.05 : 39,961.56 = 7,921 : x
  2. Step 2: Convert to fraction form
    26,641.05/39,961.56 = 7,921/x
  3. Step 3: Cross multiply
    26,641.05x = 39,961.56 × 7,921
  4. Step 4: Simplify right side
    26,641.05x = 316,535,516.76
  5. Step 5: Solve for x
    x = 316,535,516.76/26,641.05
  6. Step 6: Final answer
    x = 11,881.50

Related Problems

Find fourth proportional to 13,320.53, 19,980.78 and 3,960.50
Half scale
Find fourth proportional to 53,282.10, 79,923.12 and 15,842
Double scale
Find fourth proportional to 26,642.05, 39,963.06 and 7,922
Similar ratio
Find fourth proportional to 39,961.58, 59,942.34 and 11,881.50
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.