Home / 18,076.12-27,112.58-6,388.76

Finding the Fourth Proportional to 18,076.12, 27,112.58 and 6,388.76

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Solution

The fourth proportional to 18,076.12, 27,112.58 and 6,388.76 is: 9,582.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,076.12 : 27,112.58 = 6,388.76 : x
  2. Step 2: Convert to fraction form
    18,076.12/27,112.58 = 6,388.76/x
  3. Step 3: Cross multiply
    18,076.12x = 27,112.58 × 6,388.76
  4. Step 4: Simplify right side
    18,076.12x = 173,215,766.60
  5. Step 5: Solve for x
    x = 173,215,766.60/18,076.12
  6. Step 6: Final answer
    x = 9,582.57

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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.