Home / 12,708.48-19,062.66-3,220.82

Finding the Fourth Proportional to 12,708.48, 19,062.66 and 3,220.82

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Solution

The fourth proportional to 12,708.48, 19,062.66 and 3,220.82 is: 4,831.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,708.48 : 19,062.66 = 3,220.82 : x
  2. Step 2: Convert to fraction form
    12,708.48/19,062.66 = 3,220.82/x
  3. Step 3: Cross multiply
    12,708.48x = 19,062.66 × 3,220.82
  4. Step 4: Simplify right side
    12,708.48x = 61,397,396.58
  5. Step 5: Solve for x
    x = 61,397,396.58/12,708.48
  6. Step 6: Final answer
    x = 4,831.21

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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.