Home / 6,895.80-9,519.12-4,378.05

Finding the Fourth Proportional to 6,895.80, 9,519.12 and 4,378.05

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Solution

The fourth proportional to 6,895.80, 9,519.12 and 4,378.05 is: 6,043.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,895.80 : 9,519.12 = 4,378.05 : x
  2. Step 2: Convert to fraction form
    6,895.80/9,519.12 = 4,378.05/x
  3. Step 3: Cross multiply
    6,895.80x = 9,519.12 × 4,378.05
  4. Step 4: Simplify right side
    6,895.80x = 41,675,183.32
  5. Step 5: Solve for x
    x = 41,675,183.32/6,895.80
  6. Step 6: Final answer
    x = 6,043.56

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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.