Home / 18,077.07-27,115.74-6,987.36

Finding the Fourth Proportional to 18,077.07, 27,115.74 and 6,987.36

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Solution

The fourth proportional to 18,077.07, 27,115.74 and 6,987.36 is: 10,481.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,077.07 : 27,115.74 = 6,987.36 : x
  2. Step 2: Convert to fraction form
    18,077.07/27,115.74 = 6,987.36/x
  3. Step 3: Cross multiply
    18,077.07x = 27,115.74 × 6,987.36
  4. Step 4: Simplify right side
    18,077.07x = 189,467,437.05
  5. Step 5: Solve for x
    x = 189,467,437.05/18,077.07
  6. Step 6: Final answer
    x = 10,481.09

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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.