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Finding the Fourth Proportional to 18,651.71, 27,974.79 and 6,802.70

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Solution

The fourth proportional to 18,651.71, 27,974.79 and 6,802.70 is: 10,203.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,651.71 : 27,974.79 = 6,802.70 : x
  2. Step 2: Convert to fraction form
    18,651.71/27,974.79 = 6,802.70/x
  3. Step 3: Cross multiply
    18,651.71x = 27,974.79 × 6,802.70
  4. Step 4: Simplify right side
    18,651.71x = 190,303,964.06
  5. Step 5: Solve for x
    x = 190,303,964.06/18,651.71
  6. Step 6: Final answer
    x = 10,203.03

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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.