Home / 9,390.24-12,958.32-5,198.88

Finding the Fourth Proportional to 9,390.24, 12,958.32 and 5,198.88

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Solution

The fourth proportional to 9,390.24, 12,958.32 and 5,198.88 is: 7,174.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.24 : 12,958.32 = 5,198.88 : x
  2. Step 2: Convert to fraction form
    9,390.24/12,958.32 = 5,198.88/x
  3. Step 3: Cross multiply
    9,390.24x = 12,958.32 × 5,198.88
  4. Step 4: Simplify right side
    9,390.24x = 67,368,750.68
  5. Step 5: Solve for x
    x = 67,368,750.68/9,390.24
  6. Step 6: Final answer
    x = 7,174.34

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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.