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Finding the Fourth Proportional to 8,754.44, 13,128.54 and 2,909.48

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Solution

The fourth proportional to 8,754.44, 13,128.54 and 2,909.48 is: 4,363.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.44 : 13,128.54 = 2,909.48 : x
  2. Step 2: Convert to fraction form
    8,754.44/13,128.54 = 2,909.48/x
  3. Step 3: Cross multiply
    8,754.44x = 13,128.54 × 2,909.48
  4. Step 4: Simplify right side
    8,754.44x = 38,197,224.56
  5. Step 5: Solve for x
    x = 38,197,224.56/8,754.44
  6. Step 6: Final answer
    x = 4,363.18

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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.