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Finding the Fourth Proportional to 9,843.36, 13,579.98 and 6,487.98

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Solution

The fourth proportional to 9,843.36, 13,579.98 and 6,487.98 is: 8,950.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,843.36 : 13,579.98 = 6,487.98 : x
  2. Step 2: Convert to fraction form
    9,843.36/13,579.98 = 6,487.98/x
  3. Step 3: Cross multiply
    9,843.36x = 13,579.98 × 6,487.98
  4. Step 4: Simplify right side
    9,843.36x = 88,106,638.64
  5. Step 5: Solve for x
    x = 88,106,638.64/9,843.36
  6. Step 6: Final answer
    x = 8,950.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.