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Finding the Fourth Proportional to 8,936.03, 13,395.32 and 4,254.78

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Solution

The fourth proportional to 8,936.03, 13,395.32 and 4,254.78 is: 6,378.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.03 : 13,395.32 = 4,254.78 : x
  2. Step 2: Convert to fraction form
    8,936.03/13,395.32 = 4,254.78/x
  3. Step 3: Cross multiply
    8,936.03x = 13,395.32 × 4,254.78
  4. Step 4: Simplify right side
    8,936.03x = 56,994,143.69
  5. Step 5: Solve for x
    x = 56,994,143.69/8,936.03
  6. Step 6: Final answer
    x = 6,378.02

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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.