Home / 12,475.94-18,708.44-4,679.28

Finding the Fourth Proportional to 12,475.94, 18,708.44 and 4,679.28

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Solution

The fourth proportional to 12,475.94, 18,708.44 and 4,679.28 is: 7,016.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.94 : 18,708.44 = 4,679.28 : x
  2. Step 2: Convert to fraction form
    12,475.94/18,708.44 = 4,679.28/x
  3. Step 3: Cross multiply
    12,475.94x = 18,708.44 × 4,679.28
  4. Step 4: Simplify right side
    12,475.94x = 87,542,005.73
  5. Step 5: Solve for x
    x = 87,542,005.73/12,475.94
  6. Step 6: Final answer
    x = 7,016.87

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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.