Home / 11,788.06-17,678.48-3,889.12

Finding the Fourth Proportional to 11,788.06, 17,678.48 and 3,889.12

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Solution

The fourth proportional to 11,788.06, 17,678.48 and 3,889.12 is: 5,832.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,788.06 : 17,678.48 = 3,889.12 : x
  2. Step 2: Convert to fraction form
    11,788.06/17,678.48 = 3,889.12/x
  3. Step 3: Cross multiply
    11,788.06x = 17,678.48 × 3,889.12
  4. Step 4: Simplify right side
    11,788.06x = 68,753,730.14
  5. Step 5: Solve for x
    x = 68,753,730.14/11,788.06
  6. Step 6: Final answer
    x = 5,832.49

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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.