Home / 11,101.23-16,660.05-5,257.85

Finding the Fourth Proportional to 11,101.23, 16,660.05 and 5,257.85

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Solution

The fourth proportional to 11,101.23, 16,660.05 and 5,257.85 is: 7,890.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,101.23 : 16,660.05 = 5,257.85 : x
  2. Step 2: Convert to fraction form
    11,101.23/16,660.05 = 5,257.85/x
  3. Step 3: Cross multiply
    11,101.23x = 16,660.05 × 5,257.85
  4. Step 4: Simplify right side
    11,101.23x = 87,596,043.89
  5. Step 5: Solve for x
    x = 87,596,043.89/11,101.23
  6. Step 6: Final answer
    x = 7,890.66

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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.