Home / 17,217.57-23,753.46-9,945.79

Finding the Fourth Proportional to 17,217.57, 23,753.46 and 9,945.79

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Solution

The fourth proportional to 17,217.57, 23,753.46 and 9,945.79 is: 13,721.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,217.57 : 23,753.46 = 9,945.79 : x
  2. Step 2: Convert to fraction form
    17,217.57/23,753.46 = 9,945.79/x
  3. Step 3: Cross multiply
    17,217.57x = 23,753.46 × 9,945.79
  4. Step 4: Simplify right side
    17,217.57x = 236,246,924.93
  5. Step 5: Solve for x
    x = 236,246,924.93/17,217.57
  6. Step 6: Final answer
    x = 13,721.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.