Home / 11,239.31-16,858.83-2,918.59

Finding the Fourth Proportional to 11,239.31, 16,858.83 and 2,918.59

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Solution

The fourth proportional to 11,239.31, 16,858.83 and 2,918.59 is: 4,377.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.31 : 16,858.83 = 2,918.59 : x
  2. Step 2: Convert to fraction form
    11,239.31/16,858.83 = 2,918.59/x
  3. Step 3: Cross multiply
    11,239.31x = 16,858.83 × 2,918.59
  4. Step 4: Simplify right side
    11,239.31x = 49,203,928.36
  5. Step 5: Solve for x
    x = 49,203,928.36/11,239.31
  6. Step 6: Final answer
    x = 4,377.84

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1.5x scale

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.