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Finding the Fourth Proportional to 10,868.85, 14,997.04 and 6,393.49

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Solution

The fourth proportional to 10,868.85, 14,997.04 and 6,393.49 is: 8,821.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,868.85 : 14,997.04 = 6,393.49 : x
  2. Step 2: Convert to fraction form
    10,868.85/14,997.04 = 6,393.49/x
  3. Step 3: Cross multiply
    10,868.85x = 14,997.04 × 6,393.49
  4. Step 4: Simplify right side
    10,868.85x = 95,883,371.79
  5. Step 5: Solve for x
    x = 95,883,371.79/10,868.85
  6. Step 6: Final answer
    x = 8,821.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.