Home / 11,320.81-16,975.05-3,924.66

Finding the Fourth Proportional to 11,320.81, 16,975.05 and 3,924.66

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Solution

The fourth proportional to 11,320.81, 16,975.05 and 3,924.66 is: 5,884.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.81 : 16,975.05 = 3,924.66 : x
  2. Step 2: Convert to fraction form
    11,320.81/16,975.05 = 3,924.66/x
  3. Step 3: Cross multiply
    11,320.81x = 16,975.05 × 3,924.66
  4. Step 4: Simplify right side
    11,320.81x = 66,621,299.73
  5. Step 5: Solve for x
    x = 66,621,299.73/11,320.81
  6. Step 6: Final answer
    x = 5,884.85

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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.