Home / 6,878.12-10,295.30-4,920.75

Finding the Fourth Proportional to 6,878.12, 10,295.30 and 4,920.75

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Solution

The fourth proportional to 6,878.12, 10,295.30 and 4,920.75 is: 7,365.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878.12 : 10,295.30 = 4,920.75 : x
  2. Step 2: Convert to fraction form
    6,878.12/10,295.30 = 4,920.75/x
  3. Step 3: Cross multiply
    6,878.12x = 10,295.30 × 4,920.75
  4. Step 4: Simplify right side
    6,878.12x = 50,660,609.78
  5. Step 5: Solve for x
    x = 50,660,609.78/6,878.12
  6. Step 6: Final answer
    x = 7,365.48

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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.