Home / 15,778.33-23,669.66-5,781.79

Finding the Fourth Proportional to 15,778.33, 23,669.66 and 5,781.79

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Solution

The fourth proportional to 15,778.33, 23,669.66 and 5,781.79 is: 8,673.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,778.33 : 23,669.66 = 5,781.79 : x
  2. Step 2: Convert to fraction form
    15,778.33/23,669.66 = 5,781.79/x
  3. Step 3: Cross multiply
    15,778.33x = 23,669.66 × 5,781.79
  4. Step 4: Simplify right side
    15,778.33x = 136,853,003.49
  5. Step 5: Solve for x
    x = 136,853,003.49/15,778.33
  6. Step 6: Final answer
    x = 8,673.48

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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.