Home / 11,429.82-15,738.09-10,005.54

Finding the Fourth Proportional to 11,429.82, 15,738.09 and 10,005.54

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Solution

The fourth proportional to 11,429.82, 15,738.09 and 10,005.54 is: 13,776.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.82 : 15,738.09 = 10,005.54 : x
  2. Step 2: Convert to fraction form
    11,429.82/15,738.09 = 10,005.54/x
  3. Step 3: Cross multiply
    11,429.82x = 15,738.09 × 10,005.54
  4. Step 4: Simplify right side
    11,429.82x = 157,467,992.48
  5. Step 5: Solve for x
    x = 157,467,992.48/11,429.82
  6. Step 6: Final answer
    x = 13,776.94

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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.