Home / 18,128.35-27,193.82-7,587.75

Finding the Fourth Proportional to 18,128.35, 27,193.82 and 7,587.75

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Solution

The fourth proportional to 18,128.35, 27,193.82 and 7,587.75 is: 11,382.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.35 : 27,193.82 = 7,587.75 : x
  2. Step 2: Convert to fraction form
    18,128.35/27,193.82 = 7,587.75/x
  3. Step 3: Cross multiply
    18,128.35x = 27,193.82 × 7,587.75
  4. Step 4: Simplify right side
    18,128.35x = 206,339,907.71
  5. Step 5: Solve for x
    x = 206,339,907.71/18,128.35
  6. Step 6: Final answer
    x = 11,382.17

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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.