Home / 10,121.50-15,190.09-7,023.26

Finding the Fourth Proportional to 10,121.50, 15,190.09 and 7,023.26

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Solution

The fourth proportional to 10,121.50, 15,190.09 and 7,023.26 is: 10,540.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.50 : 15,190.09 = 7,023.26 : x
  2. Step 2: Convert to fraction form
    10,121.50/15,190.09 = 7,023.26/x
  3. Step 3: Cross multiply
    10,121.50x = 15,190.09 × 7,023.26
  4. Step 4: Simplify right side
    10,121.50x = 106,683,951.49
  5. Step 5: Solve for x
    x = 106,683,951.49/10,121.50
  6. Step 6: Final answer
    x = 10,540.33

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1.5x scale

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.