Home / 18,087.14-27,130.71-4,939.86

Finding the Fourth Proportional to 18,087.14, 27,130.71 and 4,939.86

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Solution

The fourth proportional to 18,087.14, 27,130.71 and 4,939.86 is: 7,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.14 : 27,130.71 = 4,939.86 : x
  2. Step 2: Convert to fraction form
    18,087.14/27,130.71 = 4,939.86/x
  3. Step 3: Cross multiply
    18,087.14x = 27,130.71 × 4,939.86
  4. Step 4: Simplify right side
    18,087.14x = 134,022,029.37
  5. Step 5: Solve for x
    x = 134,022,029.37/18,087.14
  6. Step 6: Final answer
    x = 7,409.80

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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.