Home / 11,221.51-16,838.42-4,206.37

Finding the Fourth Proportional to 11,221.51, 16,838.42 and 4,206.37

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Solution

The fourth proportional to 11,221.51, 16,838.42 and 4,206.37 is: 6,311.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.51 : 16,838.42 = 4,206.37 : x
  2. Step 2: Convert to fraction form
    11,221.51/16,838.42 = 4,206.37/x
  3. Step 3: Cross multiply
    11,221.51x = 16,838.42 × 4,206.37
  4. Step 4: Simplify right side
    11,221.51x = 70,828,624.74
  5. Step 5: Solve for x
    x = 70,828,624.74/11,221.51
  6. Step 6: Final answer
    x = 6,311.86

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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.