Home / 7,326.94-10,111.16-3,969.75

Finding the Fourth Proportional to 7,326.94, 10,111.16 and 3,969.75

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Solution

The fourth proportional to 7,326.94, 10,111.16 and 3,969.75 is: 5,478.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.94 : 10,111.16 = 3,969.75 : x
  2. Step 2: Convert to fraction form
    7,326.94/10,111.16 = 3,969.75/x
  3. Step 3: Cross multiply
    7,326.94x = 10,111.16 × 3,969.75
  4. Step 4: Simplify right side
    7,326.94x = 40,138,777.41
  5. Step 5: Solve for x
    x = 40,138,777.41/7,326.94
  6. Step 6: Final answer
    x = 5,478.25

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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.