Home / 10,120.56-15,183.89-5,193.68

Finding the Fourth Proportional to 10,120.56, 15,183.89 and 5,193.68

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Solution

The fourth proportional to 10,120.56, 15,183.89 and 5,193.68 is: 7,792.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.56 : 15,183.89 = 5,193.68 : x
  2. Step 2: Convert to fraction form
    10,120.56/15,183.89 = 5,193.68/x
  3. Step 3: Cross multiply
    10,120.56x = 15,183.89 × 5,193.68
  4. Step 4: Simplify right side
    10,120.56x = 78,860,163.93
  5. Step 5: Solve for x
    x = 78,860,163.93/10,120.56
  6. Step 6: Final answer
    x = 7,792.08

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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.