Home / 11,693.40-17,520.66-8,223.36

Finding the Fourth Proportional to 11,693.40, 17,520.66 and 8,223.36

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Solution

The fourth proportional to 11,693.40, 17,520.66 and 8,223.36 is: 12,321.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,693.40 : 17,520.66 = 8,223.36 : x
  2. Step 2: Convert to fraction form
    11,693.40/17,520.66 = 8,223.36/x
  3. Step 3: Cross multiply
    11,693.40x = 17,520.66 × 8,223.36
  4. Step 4: Simplify right side
    11,693.40x = 144,078,694.62
  5. Step 5: Solve for x
    x = 144,078,694.62/11,693.40
  6. Step 6: Final answer
    x = 12,321.37

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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.