Home / 7,326.95-10,111.22-3,969.80

Finding the Fourth Proportional to 7,326.95, 10,111.22 and 3,969.80

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Solution

The fourth proportional to 7,326.95, 10,111.22 and 3,969.80 is: 5,478.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.95 : 10,111.22 = 3,969.80 : x
  2. Step 2: Convert to fraction form
    7,326.95/10,111.22 = 3,969.80/x
  3. Step 3: Cross multiply
    7,326.95x = 10,111.22 × 3,969.80
  4. Step 4: Simplify right side
    7,326.95x = 40,139,450.75
  5. Step 5: Solve for x
    x = 40,139,450.75/7,326.95
  6. Step 6: Final answer
    x = 5,478.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.