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Finding the Fourth Proportional to 18,606.12, 27,913.01 and 6,126.88

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Solution

The fourth proportional to 18,606.12, 27,913.01 and 6,126.88 is: 9,191.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,606.12 : 27,913.01 = 6,126.88 : x
  2. Step 2: Convert to fraction form
    18,606.12/27,913.01 = 6,126.88/x
  3. Step 3: Cross multiply
    18,606.12x = 27,913.01 × 6,126.88
  4. Step 4: Simplify right side
    18,606.12x = 171,019,662.71
  5. Step 5: Solve for x
    x = 171,019,662.71/18,606.12
  6. Step 6: Final answer
    x = 9,191.58

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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.