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Finding the Fourth Proportional to 12,672.30, 19,027.65 and 9,753.90

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Solution

The fourth proportional to 12,672.30, 19,027.65 and 9,753.90 is: 14,645.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.30 : 19,027.65 = 9,753.90 : x
  2. Step 2: Convert to fraction form
    12,672.30/19,027.65 = 9,753.90/x
  3. Step 3: Cross multiply
    12,672.30x = 19,027.65 × 9,753.90
  4. Step 4: Simplify right side
    12,672.30x = 185,593,795.34
  5. Step 5: Solve for x
    x = 185,593,795.34/12,672.30
  6. Step 6: Final answer
    x = 14,645.63

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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.