Home / 18,270.92-25,213.82-9,887.42

Finding the Fourth Proportional to 18,270.92, 25,213.82 and 9,887.42

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Solution

The fourth proportional to 18,270.92, 25,213.82 and 9,887.42 is: 13,644.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.92 : 25,213.82 = 9,887.42 : x
  2. Step 2: Convert to fraction form
    18,270.92/25,213.82 = 9,887.42/x
  3. Step 3: Cross multiply
    18,270.92x = 25,213.82 × 9,887.42
  4. Step 4: Simplify right side
    18,270.92x = 249,299,628.14
  5. Step 5: Solve for x
    x = 249,299,628.14/18,270.92
  6. Step 6: Final answer
    x = 13,644.61

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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.