Home / 17,128.20-25,676.10-10,113.60

Finding the Fourth Proportional to 17,128.20, 25,676.10 and 10,113.60

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Solution

The fourth proportional to 17,128.20, 25,676.10 and 10,113.60 is: 15,160.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,128.20 : 25,676.10 = 10,113.60 : x
  2. Step 2: Convert to fraction form
    17,128.20/25,676.10 = 10,113.60/x
  3. Step 3: Cross multiply
    17,128.20x = 25,676.10 × 10,113.60
  4. Step 4: Simplify right side
    17,128.20x = 259,677,804.96
  5. Step 5: Solve for x
    x = 259,677,804.96/17,128.20
  6. Step 6: Final answer
    x = 15,160.83

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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.