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Finding the Fourth Proportional to 18,112.13, 27,176 and 9,798

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Solution

The fourth proportional to 18,112.13, 27,176 and 9,798 is: 14,701.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,112.13 : 27,176 = 9,798 : x
  2. Step 2: Convert to fraction form
    18,112.13/27,176 = 9,798/x
  3. Step 3: Cross multiply
    18,112.13x = 27,176 × 9,798
  4. Step 4: Simplify right side
    18,112.13x = 266,270,448
  5. Step 5: Solve for x
    x = 266,270,448/18,112.13
  6. Step 6: Final answer
    x = 14,701.22

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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.