Home / 12,476.44-18,709.19-4,679.78

Finding the Fourth Proportional to 12,476.44, 18,709.19 and 4,679.78

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Solution

The fourth proportional to 12,476.44, 18,709.19 and 4,679.78 is: 7,017.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476.44 : 18,709.19 = 4,679.78 : x
  2. Step 2: Convert to fraction form
    12,476.44/18,709.19 = 4,679.78/x
  3. Step 3: Cross multiply
    12,476.44x = 18,709.19 × 4,679.78
  4. Step 4: Simplify right side
    12,476.44x = 87,554,869.78
  5. Step 5: Solve for x
    x = 87,554,869.78/12,476.44
  6. Step 6: Final answer
    x = 7,017.62

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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.