Home / 11,106.84-16,660.14-3,315.72

Finding the Fourth Proportional to 11,106.84, 16,660.14 and 3,315.72

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Solution

The fourth proportional to 11,106.84, 16,660.14 and 3,315.72 is: 4,973.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.84 : 16,660.14 = 3,315.72 : x
  2. Step 2: Convert to fraction form
    11,106.84/16,660.14 = 3,315.72/x
  3. Step 3: Cross multiply
    11,106.84x = 16,660.14 × 3,315.72
  4. Step 4: Simplify right side
    11,106.84x = 55,240,359.40
  5. Step 5: Solve for x
    x = 55,240,359.40/11,106.84
  6. Step 6: Final answer
    x = 4,973.54

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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.