Home / 11,285.70-16,928.81-3,890.06

Finding the Fourth Proportional to 11,285.70, 16,928.81 and 3,890.06

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Solution

The fourth proportional to 11,285.70, 16,928.81 and 3,890.06 is: 5,835.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.70 : 16,928.81 = 3,890.06 : x
  2. Step 2: Convert to fraction form
    11,285.70/16,928.81 = 3,890.06/x
  3. Step 3: Cross multiply
    11,285.70x = 16,928.81 × 3,890.06
  4. Step 4: Simplify right side
    11,285.70x = 65,853,982.53
  5. Step 5: Solve for x
    x = 65,853,982.53/11,285.70
  6. Step 6: Final answer
    x = 5,835.17

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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.