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Finding the Fourth Proportional to 18,068, 27,097.40 and 4,919.68

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Solution

The fourth proportional to 18,068, 27,097.40 and 4,919.68 is: 7,378.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,068 : 27,097.40 = 4,919.68 : x
  2. Step 2: Convert to fraction form
    18,068/27,097.40 = 4,919.68/x
  3. Step 3: Cross multiply
    18,068x = 27,097.40 × 4,919.68
  4. Step 4: Simplify right side
    18,068x = 133,310,536.83
  5. Step 5: Solve for x
    x = 133,310,536.83/18,068
  6. Step 6: Final answer
    x = 7,378.27

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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.