Home / 18,086.94-27,130.37-4,939.29

Finding the Fourth Proportional to 18,086.94, 27,130.37 and 4,939.29

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Solution

The fourth proportional to 18,086.94, 27,130.37 and 4,939.29 is: 7,408.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,086.94 : 27,130.37 = 4,939.29 : x
  2. Step 2: Convert to fraction form
    18,086.94/27,130.37 = 4,939.29/x
  3. Step 3: Cross multiply
    18,086.94x = 27,130.37 × 4,939.29
  4. Step 4: Simplify right side
    18,086.94x = 134,004,740.54
  5. Step 5: Solve for x
    x = 134,004,740.54/18,086.94
  6. Step 6: Final answer
    x = 7,408.92

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1.5x scale

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.