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Finding the Fourth Proportional to 8,979.98, 13,474.31 and 6,364.26

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Solution

The fourth proportional to 8,979.98, 13,474.31 and 6,364.26 is: 9,549.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.98 : 13,474.31 = 6,364.26 : x
  2. Step 2: Convert to fraction form
    8,979.98/13,474.31 = 6,364.26/x
  3. Step 3: Cross multiply
    8,979.98x = 13,474.31 × 6,364.26
  4. Step 4: Simplify right side
    8,979.98x = 85,753,980.34
  5. Step 5: Solve for x
    x = 85,753,980.34/8,979.98
  6. Step 6: Final answer
    x = 9,549.47

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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.