Home / 11,863.24-16,371.27-7,148.43

Finding the Fourth Proportional to 11,863.24, 16,371.27 and 7,148.43

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Solution

The fourth proportional to 11,863.24, 16,371.27 and 7,148.43 is: 9,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,863.24 : 16,371.27 = 7,148.43 : x
  2. Step 2: Convert to fraction form
    11,863.24/16,371.27 = 7,148.43/x
  3. Step 3: Cross multiply
    11,863.24x = 16,371.27 × 7,148.43
  4. Step 4: Simplify right side
    11,863.24x = 117,028,877.61
  5. Step 5: Solve for x
    x = 117,028,877.61/11,863.24
  6. Step 6: Final answer
    x = 9,864.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.