Home / 8,101.51-12,147.96-2,553.41

Finding the Fourth Proportional to 8,101.51, 12,147.96 and 2,553.41

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Solution

The fourth proportional to 8,101.51, 12,147.96 and 2,553.41 is: 3,828.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.51 : 12,147.96 = 2,553.41 : x
  2. Step 2: Convert to fraction form
    8,101.51/12,147.96 = 2,553.41/x
  3. Step 3: Cross multiply
    8,101.51x = 12,147.96 × 2,553.41
  4. Step 4: Simplify right side
    8,101.51x = 31,018,722.54
  5. Step 5: Solve for x
    x = 31,018,722.54/8,101.51
  6. Step 6: Final answer
    x = 3,828.76

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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.