Home / 11,881.08-17,820.81-4,095.36

Finding the Fourth Proportional to 11,881.08, 17,820.81 and 4,095.36

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Solution

The fourth proportional to 11,881.08, 17,820.81 and 4,095.36 is: 6,142.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,881.08 : 17,820.81 = 4,095.36 : x
  2. Step 2: Convert to fraction form
    11,881.08/17,820.81 = 4,095.36/x
  3. Step 3: Cross multiply
    11,881.08x = 17,820.81 × 4,095.36
  4. Step 4: Simplify right side
    11,881.08x = 72,982,632.44
  5. Step 5: Solve for x
    x = 72,982,632.44/11,881.08
  6. Step 6: Final answer
    x = 6,142.76

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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.