Home / 17,940.30-26,879.13-11,690.34

Finding the Fourth Proportional to 17,940.30, 26,879.13 and 11,690.34

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Solution

The fourth proportional to 17,940.30, 26,879.13 and 11,690.34 is: 17,515.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,940.30 : 26,879.13 = 11,690.34 : x
  2. Step 2: Convert to fraction form
    17,940.30/26,879.13 = 11,690.34/x
  3. Step 3: Cross multiply
    17,940.30x = 26,879.13 × 11,690.34
  4. Step 4: Simplify right side
    17,940.30x = 314,226,168.60
  5. Step 5: Solve for x
    x = 314,226,168.60/17,940.30
  6. Step 6: Final answer
    x = 17,515.10

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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.