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Finding the Fourth Proportional to 9,228.13, 13,842.09 and 2,988

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Solution

The fourth proportional to 9,228.13, 13,842.09 and 2,988 is: 4,481.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,228.13 : 13,842.09 = 2,988 : x
  2. Step 2: Convert to fraction form
    9,228.13/13,842.09 = 2,988/x
  3. Step 3: Cross multiply
    9,228.13x = 13,842.09 × 2,988
  4. Step 4: Simplify right side
    9,228.13x = 41,360,164.92
  5. Step 5: Solve for x
    x = 41,360,164.92/9,228.13
  6. Step 6: Final answer
    x = 4,481.97

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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.