Home / 12,379.28-18,568.73-4,983.56

Finding the Fourth Proportional to 12,379.28, 18,568.73 and 4,983.56

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Solution

The fourth proportional to 12,379.28, 18,568.73 and 4,983.56 is: 7,475.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,379.28 : 18,568.73 = 4,983.56 : x
  2. Step 2: Convert to fraction form
    12,379.28/18,568.73 = 4,983.56/x
  3. Step 3: Cross multiply
    12,379.28x = 18,568.73 × 4,983.56
  4. Step 4: Simplify right side
    12,379.28x = 92,538,438.96
  5. Step 5: Solve for x
    x = 92,538,438.96/12,379.28
  6. Step 6: Final answer
    x = 7,475.27

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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.