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Finding the Fourth Proportional to 12,672.26, 19,004.63 and 4,769.04

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Solution

The fourth proportional to 12,672.26, 19,004.63 and 4,769.04 is: 7,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.26 : 19,004.63 = 4,769.04 : x
  2. Step 2: Convert to fraction form
    12,672.26/19,004.63 = 4,769.04/x
  3. Step 3: Cross multiply
    12,672.26x = 19,004.63 × 4,769.04
  4. Step 4: Simplify right side
    12,672.26x = 90,633,840.66
  5. Step 5: Solve for x
    x = 90,633,840.66/12,672.26
  6. Step 6: Final answer
    x = 7,152.15

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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.