Home / 7,868.20-10,855.92-4,884.16

Finding the Fourth Proportional to 7,868.20, 10,855.92 and 4,884.16

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Solution

The fourth proportional to 7,868.20, 10,855.92 and 4,884.16 is: 6,738.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.20 : 10,855.92 = 4,884.16 : x
  2. Step 2: Convert to fraction form
    7,868.20/10,855.92 = 4,884.16/x
  3. Step 3: Cross multiply
    7,868.20x = 10,855.92 × 4,884.16
  4. Step 4: Simplify right side
    7,868.20x = 53,022,050.23
  5. Step 5: Solve for x
    x = 53,022,050.23/7,868.20
  6. Step 6: Final answer
    x = 6,738.78

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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.