Home / 6,986.15-10,480.79-3,698.56

Finding the Fourth Proportional to 6,986.15, 10,480.79 and 3,698.56

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Solution

The fourth proportional to 6,986.15, 10,480.79 and 3,698.56 is: 5,548.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.15 : 10,480.79 = 3,698.56 : x
  2. Step 2: Convert to fraction form
    6,986.15/10,480.79 = 3,698.56/x
  3. Step 3: Cross multiply
    6,986.15x = 10,480.79 × 3,698.56
  4. Step 4: Simplify right side
    6,986.15x = 38,763,853.01
  5. Step 5: Solve for x
    x = 38,763,853.01/6,986.15
  6. Step 6: Final answer
    x = 5,548.67

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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.