Home / 12,721.33-19,049.36-8,325.97

Finding the Fourth Proportional to 12,721.33, 19,049.36 and 8,325.97

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Solution

The fourth proportional to 12,721.33, 19,049.36 and 8,325.97 is: 12,467.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.33 : 19,049.36 = 8,325.97 : x
  2. Step 2: Convert to fraction form
    12,721.33/19,049.36 = 8,325.97/x
  3. Step 3: Cross multiply
    12,721.33x = 19,049.36 × 8,325.97
  4. Step 4: Simplify right side
    12,721.33x = 158,604,358.25
  5. Step 5: Solve for x
    x = 158,604,358.25/12,721.33
  6. Step 6: Final answer
    x = 12,467.59

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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.