Home / 10,618.38-15,928.92-3,221.73

Finding the Fourth Proportional to 10,618.38, 15,928.92 and 3,221.73

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Solution

The fourth proportional to 10,618.38, 15,928.92 and 3,221.73 is: 4,833.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.38 : 15,928.92 = 3,221.73 : x
  2. Step 2: Convert to fraction form
    10,618.38/15,928.92 = 3,221.73/x
  3. Step 3: Cross multiply
    10,618.38x = 15,928.92 × 3,221.73
  4. Step 4: Simplify right side
    10,618.38x = 51,318,679.43
  5. Step 5: Solve for x
    x = 51,318,679.43/10,618.38
  6. Step 6: Final answer
    x = 4,833.00

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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.