Home / 7,378.36-10,181.88-4,021.11

Finding the Fourth Proportional to 7,378.36, 10,181.88 and 4,021.11

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Solution

The fourth proportional to 7,378.36, 10,181.88 and 4,021.11 is: 5,548.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.36 : 10,181.88 = 4,021.11 : x
  2. Step 2: Convert to fraction form
    7,378.36/10,181.88 = 4,021.11/x
  3. Step 3: Cross multiply
    7,378.36x = 10,181.88 × 4,021.11
  4. Step 4: Simplify right side
    7,378.36x = 40,942,474.57
  5. Step 5: Solve for x
    x = 40,942,474.57/7,378.36
  6. Step 6: Final answer
    x = 5,548.99

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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.