Home / 7,475.20-11,198.43-4,178.30

Finding the Fourth Proportional to 7,475.20, 11,198.43 and 4,178.30

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Solution

The fourth proportional to 7,475.20, 11,198.43 and 4,178.30 is: 6,259.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.20 : 11,198.43 = 4,178.30 : x
  2. Step 2: Convert to fraction form
    7,475.20/11,198.43 = 4,178.30/x
  3. Step 3: Cross multiply
    7,475.20x = 11,198.43 × 4,178.30
  4. Step 4: Simplify right side
    7,475.20x = 46,790,344.08
  5. Step 5: Solve for x
    x = 46,790,344.08/7,475.20
  6. Step 6: Final answer
    x = 6,259.41

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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.