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Finding the Fourth Proportional to 9,918.52, 14,879.32 and 3,344.20

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Solution

The fourth proportional to 9,918.52, 14,879.32 and 3,344.20 is: 5,016.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.52 : 14,879.32 = 3,344.20 : x
  2. Step 2: Convert to fraction form
    9,918.52/14,879.32 = 3,344.20/x
  3. Step 3: Cross multiply
    9,918.52x = 14,879.32 × 3,344.20
  4. Step 4: Simplify right side
    9,918.52x = 49,759,421.94
  5. Step 5: Solve for x
    x = 49,759,421.94/9,918.52
  6. Step 6: Final answer
    x = 5,016.82

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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.