Home / 12,721.23-19,083.66-3,957.03

Finding the Fourth Proportional to 12,721.23, 19,083.66 and 3,957.03

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Solution

The fourth proportional to 12,721.23, 19,083.66 and 3,957.03 is: 5,936.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.23 : 19,083.66 = 3,957.03 : x
  2. Step 2: Convert to fraction form
    12,721.23/19,083.66 = 3,957.03/x
  3. Step 3: Cross multiply
    12,721.23x = 19,083.66 × 3,957.03
  4. Step 4: Simplify right side
    12,721.23x = 75,514,615.13
  5. Step 5: Solve for x
    x = 75,514,615.13/12,721.23
  6. Step 6: Final answer
    x = 5,936.11

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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.