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Finding the Fourth Proportional to 18,667, 28,001.04 and 4,816

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Solution

The fourth proportional to 18,667, 28,001.04 and 4,816 is: 7,224.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667 : 28,001.04 = 4,816 : x
  2. Step 2: Convert to fraction form
    18,667/28,001.04 = 4,816/x
  3. Step 3: Cross multiply
    18,667x = 28,001.04 × 4,816
  4. Step 4: Simplify right side
    18,667x = 134,853,008.64
  5. Step 5: Solve for x
    x = 134,853,008.64/18,667
  6. Step 6: Final answer
    x = 7,224.14

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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.