Home / 11,213.10-16,811.91-4,969.71

Finding the Fourth Proportional to 11,213.10, 16,811.91 and 4,969.71

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Solution

The fourth proportional to 11,213.10, 16,811.91 and 4,969.71 is: 7,451.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.10 : 16,811.91 = 4,969.71 : x
  2. Step 2: Convert to fraction form
    11,213.10/16,811.91 = 4,969.71/x
  3. Step 3: Cross multiply
    11,213.10x = 16,811.91 × 4,969.71
  4. Step 4: Simplify right side
    11,213.10x = 83,550,317.25
  5. Step 5: Solve for x
    x = 83,550,317.25/11,213.10
  6. Step 6: Final answer
    x = 7,451.13

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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.