Home / 18,009.42-27,014.12-4,861.78

Finding the Fourth Proportional to 18,009.42, 27,014.12 and 4,861.78

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Solution

The fourth proportional to 18,009.42, 27,014.12 and 4,861.78 is: 7,292.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009.42 : 27,014.12 = 4,861.78 : x
  2. Step 2: Convert to fraction form
    18,009.42/27,014.12 = 4,861.78/x
  3. Step 3: Cross multiply
    18,009.42x = 27,014.12 × 4,861.78
  4. Step 4: Simplify right side
    18,009.42x = 131,336,708.33
  5. Step 5: Solve for x
    x = 131,336,708.33/18,009.42
  6. Step 6: Final answer
    x = 7,292.67

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Similar ratio
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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.