Home / 14,021.73-21,031.38-5,137.11

Finding the Fourth Proportional to 14,021.73, 21,031.38 and 5,137.11

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Solution

The fourth proportional to 14,021.73, 21,031.38 and 5,137.11 is: 7,705.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,021.73 : 21,031.38 = 5,137.11 : x
  2. Step 2: Convert to fraction form
    14,021.73/21,031.38 = 5,137.11/x
  3. Step 3: Cross multiply
    14,021.73x = 21,031.38 × 5,137.11
  4. Step 4: Simplify right side
    14,021.73x = 108,040,512.51
  5. Step 5: Solve for x
    x = 108,040,512.51/14,021.73
  6. Step 6: Final answer
    x = 7,705.22

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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.