Home / 11,108.75-16,668.74-4,868.81

Finding the Fourth Proportional to 11,108.75, 16,668.74 and 4,868.81

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Solution

The fourth proportional to 11,108.75, 16,668.74 and 4,868.81 is: 7,305.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.75 : 16,668.74 = 4,868.81 : x
  2. Step 2: Convert to fraction form
    11,108.75/16,668.74 = 4,868.81/x
  3. Step 3: Cross multiply
    11,108.75x = 16,668.74 × 4,868.81
  4. Step 4: Simplify right side
    11,108.75x = 81,156,891.95
  5. Step 5: Solve for x
    x = 81,156,891.95/11,108.75
  6. Step 6: Final answer
    x = 7,305.68

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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.