Home / 9,390.25-12,958.68-5,198.77

Finding the Fourth Proportional to 9,390.25, 12,958.68 and 5,198.77

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Solution

The fourth proportional to 9,390.25, 12,958.68 and 5,198.77 is: 7,174.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.25 : 12,958.68 = 5,198.77 : x
  2. Step 2: Convert to fraction form
    9,390.25/12,958.68 = 5,198.77/x
  3. Step 3: Cross multiply
    9,390.25x = 12,958.68 × 5,198.77
  4. Step 4: Simplify right side
    9,390.25x = 67,369,196.82
  5. Step 5: Solve for x
    x = 67,369,196.82/9,390.25
  6. Step 6: Final answer
    x = 7,174.38

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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.