Home / 10,076.70-15,100.26-5,072.20

Finding the Fourth Proportional to 10,076.70, 15,100.26 and 5,072.20

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Solution

The fourth proportional to 10,076.70, 15,100.26 and 5,072.20 is: 7,600.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,076.70 : 15,100.26 = 5,072.20 : x
  2. Step 2: Convert to fraction form
    10,076.70/15,100.26 = 5,072.20/x
  3. Step 3: Cross multiply
    10,076.70x = 15,100.26 × 5,072.20
  4. Step 4: Simplify right side
    10,076.70x = 76,591,538.77
  5. Step 5: Solve for x
    x = 76,591,538.77/10,076.70
  6. Step 6: Final answer
    x = 7,600.86

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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.