Home / 10,811.85-16,222.77-4,146.11

Finding the Fourth Proportional to 10,811.85, 16,222.77 and 4,146.11

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Solution

The fourth proportional to 10,811.85, 16,222.77 and 4,146.11 is: 6,221.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.85 : 16,222.77 = 4,146.11 : x
  2. Step 2: Convert to fraction form
    10,811.85/16,222.77 = 4,146.11/x
  3. Step 3: Cross multiply
    10,811.85x = 16,222.77 × 4,146.11
  4. Step 4: Simplify right side
    10,811.85x = 67,261,368.65
  5. Step 5: Solve for x
    x = 67,261,368.65/10,811.85
  6. Step 6: Final answer
    x = 6,221.08

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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.