Home / 11,679.02-17,518.26-3,887.90

Finding the Fourth Proportional to 11,679.02, 17,518.26 and 3,887.90

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Solution

The fourth proportional to 11,679.02, 17,518.26 and 3,887.90 is: 5,831.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,679.02 : 17,518.26 = 3,887.90 : x
  2. Step 2: Convert to fraction form
    11,679.02/17,518.26 = 3,887.90/x
  3. Step 3: Cross multiply
    11,679.02x = 17,518.26 × 3,887.90
  4. Step 4: Simplify right side
    11,679.02x = 68,109,243.05
  5. Step 5: Solve for x
    x = 68,109,243.05/11,679.02
  6. Step 6: Final answer
    x = 5,831.76

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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.