Home / 12,629.40-18,924.75-6,371.97

Finding the Fourth Proportional to 12,629.40, 18,924.75 and 6,371.97

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Solution

The fourth proportional to 12,629.40, 18,924.75 and 6,371.97 is: 9,548.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.40 : 18,924.75 = 6,371.97 : x
  2. Step 2: Convert to fraction form
    12,629.40/18,924.75 = 6,371.97/x
  3. Step 3: Cross multiply
    12,629.40x = 18,924.75 × 6,371.97
  4. Step 4: Simplify right side
    12,629.40x = 120,587,939.26
  5. Step 5: Solve for x
    x = 120,587,939.26/12,629.40
  6. Step 6: Final answer
    x = 9,548.19

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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.