Home / 11,811.20-16,299.44-6,506.00

Finding the Fourth Proportional to 11,811.20, 16,299.44 and 6,506.00

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Solution

The fourth proportional to 11,811.20, 16,299.44 and 6,506.00 is: 8,978.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.20 : 16,299.44 = 6,506.00 : x
  2. Step 2: Convert to fraction form
    11,811.20/16,299.44 = 6,506.00/x
  3. Step 3: Cross multiply
    11,811.20x = 16,299.44 × 6,506.00
  4. Step 4: Simplify right side
    11,811.20x = 106,044,042.61
  5. Step 5: Solve for x
    x = 106,044,042.61/11,811.20
  6. Step 6: Final answer
    x = 8,978.27

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Why These Related Problems?

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