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Finding the Third Proportional to 14,128 and 18,328

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Solution

The third proportional to 14,128 and 18,328 is: 23,776.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128 : 18,328 = 18,328 : x
  2. Step 2: Convert to fraction form
    14,128/18,328 = 18,328/x
  3. Step 3: Cross multiply
    14,128x = 18,328 × 18,328
  4. Step 4: Simplify right side
    14,128x = 335,915,584
  5. Step 5: Solve for x
    x = 335,915,584/14,128
  6. Step 6: Final answer
    x = 23,776.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.