Home / 6,927.12-10,390.74-3,855.60

Finding the Fourth Proportional to 6,927.12, 10,390.74 and 3,855.60

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Solution

The fourth proportional to 6,927.12, 10,390.74 and 3,855.60 is: 5,783.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,927.12 : 10,390.74 = 3,855.60 : x
  2. Step 2: Convert to fraction form
    6,927.12/10,390.74 = 3,855.60/x
  3. Step 3: Cross multiply
    6,927.12x = 10,390.74 × 3,855.60
  4. Step 4: Simplify right side
    6,927.12x = 40,062,537.14
  5. Step 5: Solve for x
    x = 40,062,537.14/6,927.12
  6. Step 6: Final answer
    x = 5,783.43

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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.