Home / 11,905.80-17,858.70-3,585.48

Finding the Fourth Proportional to 11,905.80, 17,858.70 and 3,585.48

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Solution

The fourth proportional to 11,905.80, 17,858.70 and 3,585.48 is: 5,378.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,905.80 : 17,858.70 = 3,585.48 : x
  2. Step 2: Convert to fraction form
    11,905.80/17,858.70 = 3,585.48/x
  3. Step 3: Cross multiply
    11,905.80x = 17,858.70 × 3,585.48
  4. Step 4: Simplify right side
    11,905.80x = 64,032,011.68
  5. Step 5: Solve for x
    x = 64,032,011.68/11,905.80
  6. Step 6: Final answer
    x = 5,378.22

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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.