Home / 17,917.27-26,878.20-5,905.40

Finding the Fourth Proportional to 17,917.27, 26,878.20 and 5,905.40

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Solution

The fourth proportional to 17,917.27, 26,878.20 and 5,905.40 is: 8,858.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,917.27 : 26,878.20 = 5,905.40 : x
  2. Step 2: Convert to fraction form
    17,917.27/26,878.20 = 5,905.40/x
  3. Step 3: Cross multiply
    17,917.27x = 26,878.20 × 5,905.40
  4. Step 4: Simplify right side
    17,917.27x = 158,726,522.28
  5. Step 5: Solve for x
    x = 158,726,522.28/17,917.27
  6. Step 6: Final answer
    x = 8,858.86

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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.