Home / 11,067.12-15,251.58-7,917.84

Finding the Fourth Proportional to 11,067.12, 15,251.58 and 7,917.84

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Solution

The fourth proportional to 11,067.12, 15,251.58 and 7,917.84 is: 10,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,067.12 : 15,251.58 = 7,917.84 : x
  2. Step 2: Convert to fraction form
    11,067.12/15,251.58 = 7,917.84/x
  3. Step 3: Cross multiply
    11,067.12x = 15,251.58 × 7,917.84
  4. Step 4: Simplify right side
    11,067.12x = 120,759,570.19
  5. Step 5: Solve for x
    x = 120,759,570.19/11,067.12
  6. Step 6: Final answer
    x = 10,911.56

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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.