Home / 11,315.46-16,969.14-3,917.94

Finding the Fourth Proportional to 11,315.46, 16,969.14 and 3,917.94

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Solution

The fourth proportional to 11,315.46, 16,969.14 and 3,917.94 is: 5,875.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.46 : 16,969.14 = 3,917.94 : x
  2. Step 2: Convert to fraction form
    11,315.46/16,969.14 = 3,917.94/x
  3. Step 3: Cross multiply
    11,315.46x = 16,969.14 × 3,917.94
  4. Step 4: Simplify right side
    11,315.46x = 66,484,072.37
  5. Step 5: Solve for x
    x = 66,484,072.37/11,315.46
  6. Step 6: Final answer
    x = 5,875.51

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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.