Home / 18,631.16-27,940.98-6,949.88

Finding the Fourth Proportional to 18,631.16, 27,940.98 and 6,949.88

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Solution

The fourth proportional to 18,631.16, 27,940.98 and 6,949.88 is: 10,422.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.16 : 27,940.98 = 6,949.88 : x
  2. Step 2: Convert to fraction form
    18,631.16/27,940.98 = 6,949.88/x
  3. Step 3: Cross multiply
    18,631.16x = 27,940.98 × 6,949.88
  4. Step 4: Simplify right side
    18,631.16x = 194,186,458.08
  5. Step 5: Solve for x
    x = 194,186,458.08/18,631.16
  6. Step 6: Final answer
    x = 10,422.67

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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.