Home / 18,821.86-25,973.78-11,649.87

Finding the Fourth Proportional to 18,821.86, 25,973.78 and 11,649.87

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Solution

The fourth proportional to 18,821.86, 25,973.78 and 11,649.87 is: 16,076.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.86 : 25,973.78 = 11,649.87 : x
  2. Step 2: Convert to fraction form
    18,821.86/25,973.78 = 11,649.87/x
  3. Step 3: Cross multiply
    18,821.86x = 25,973.78 × 11,649.87
  4. Step 4: Simplify right side
    18,821.86x = 302,591,102.16
  5. Step 5: Solve for x
    x = 302,591,102.16/18,821.86
  6. Step 6: Final answer
    x = 16,076.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.