Home / 19,889.12-27,443.94-11,504

Finding the Fourth Proportional to 19,889.12, 27,443.94 and 11,504

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Solution

The fourth proportional to 19,889.12, 27,443.94 and 11,504 is: 15,873.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,889.12 : 27,443.94 = 11,504 : x
  2. Step 2: Convert to fraction form
    19,889.12/27,443.94 = 11,504/x
  3. Step 3: Cross multiply
    19,889.12x = 27,443.94 × 11,504
  4. Step 4: Simplify right side
    19,889.12x = 315,715,085.76
  5. Step 5: Solve for x
    x = 315,715,085.76/19,889.12
  6. Step 6: Final answer
    x = 15,873.76

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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.