Home / 12,795.78-19,183.92-10,618.50

Finding the Fourth Proportional to 12,795.78, 19,183.92 and 10,618.50

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Solution

The fourth proportional to 12,795.78, 19,183.92 and 10,618.50 is: 15,919.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,795.78 : 19,183.92 = 10,618.50 : x
  2. Step 2: Convert to fraction form
    12,795.78/19,183.92 = 10,618.50/x
  3. Step 3: Cross multiply
    12,795.78x = 19,183.92 × 10,618.50
  4. Step 4: Simplify right side
    12,795.78x = 203,704,454.52
  5. Step 5: Solve for x
    x = 203,704,454.52/12,795.78
  6. Step 6: Final answer
    x = 15,919.66

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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.