Home / 12,796.11-19,138.68-7,518.56

Finding the Fourth Proportional to 12,796.11, 19,138.68 and 7,518.56

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Solution

The fourth proportional to 12,796.11, 19,138.68 and 7,518.56 is: 11,245.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,796.11 : 19,138.68 = 7,518.56 : x
  2. Step 2: Convert to fraction form
    12,796.11/19,138.68 = 7,518.56/x
  3. Step 3: Cross multiply
    12,796.11x = 19,138.68 × 7,518.56
  4. Step 4: Simplify right side
    12,796.11x = 143,895,218.21
  5. Step 5: Solve for x
    x = 143,895,218.21/12,796.11
  6. Step 6: Final answer
    x = 11,245.23

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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.