Home / 12,652.74-18,979.33-3,887.73

Finding the Fourth Proportional to 12,652.74, 18,979.33 and 3,887.73

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Solution

The fourth proportional to 12,652.74, 18,979.33 and 3,887.73 is: 5,831.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,652.74 : 18,979.33 = 3,887.73 : x
  2. Step 2: Convert to fraction form
    12,652.74/18,979.33 = 3,887.73/x
  3. Step 3: Cross multiply
    12,652.74x = 18,979.33 × 3,887.73
  4. Step 4: Simplify right side
    12,652.74x = 73,786,396.29
  5. Step 5: Solve for x
    x = 73,786,396.29/12,652.74
  6. Step 6: Final answer
    x = 5,831.66

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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.