Home / 12,631.85-18,947.82-3,866.73

Finding the Fourth Proportional to 12,631.85, 18,947.82 and 3,866.73

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Solution

The fourth proportional to 12,631.85, 18,947.82 and 3,866.73 is: 5,800.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.85 : 18,947.82 = 3,866.73 : x
  2. Step 2: Convert to fraction form
    12,631.85/18,947.82 = 3,866.73/x
  3. Step 3: Cross multiply
    12,631.85x = 18,947.82 × 3,866.73
  4. Step 4: Simplify right side
    12,631.85x = 73,266,104.03
  5. Step 5: Solve for x
    x = 73,266,104.03/12,631.85
  6. Step 6: Final answer
    x = 5,800.11

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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.