Home / 10,619.18-15,928.76-3,122.73

Finding the Fourth Proportional to 10,619.18, 15,928.76 and 3,122.73

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Solution

The fourth proportional to 10,619.18, 15,928.76 and 3,122.73 is: 4,684.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.18 : 15,928.76 = 3,122.73 : x
  2. Step 2: Convert to fraction form
    10,619.18/15,928.76 = 3,122.73/x
  3. Step 3: Cross multiply
    10,619.18x = 15,928.76 × 3,122.73
  4. Step 4: Simplify right side
    10,619.18x = 49,741,201.10
  5. Step 5: Solve for x
    x = 49,741,201.10/10,619.18
  6. Step 6: Final answer
    x = 4,684.09

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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.