Home / 18,125.76-27,186.60-6,278.28

Finding the Fourth Proportional to 18,125.76, 27,186.60 and 6,278.28

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Solution

The fourth proportional to 18,125.76, 27,186.60 and 6,278.28 is: 9,416.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.76 : 27,186.60 = 6,278.28 : x
  2. Step 2: Convert to fraction form
    18,125.76/27,186.60 = 6,278.28/x
  3. Step 3: Cross multiply
    18,125.76x = 27,186.60 × 6,278.28
  4. Step 4: Simplify right side
    18,125.76x = 170,685,087.05
  5. Step 5: Solve for x
    x = 170,685,087.05/18,125.76
  6. Step 6: Final answer
    x = 9,416.71

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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.