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Finding the Fourth Proportional to 9,644, 13,309.54 and 6,109.98

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Solution

The fourth proportional to 9,644, 13,309.54 and 6,109.98 is: 8,432.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,644 : 13,309.54 = 6,109.98 : x
  2. Step 2: Convert to fraction form
    9,644/13,309.54 = 6,109.98/x
  3. Step 3: Cross multiply
    9,644x = 13,309.54 × 6,109.98
  4. Step 4: Simplify right side
    9,644x = 81,321,023.21
  5. Step 5: Solve for x
    x = 81,321,023.21/9,644
  6. Step 6: Final answer
    x = 8,432.29

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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.