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Finding the Third Proportional to 13,240 and 14,488

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Solution

The third proportional to 13,240 and 14,488 is: 15,853.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240 : 14,488 = 14,488 : x
  2. Step 2: Convert to fraction form
    13,240/14,488 = 14,488/x
  3. Step 3: Cross multiply
    13,240x = 14,488 × 14,488
  4. Step 4: Simplify right side
    13,240x = 209,902,144
  5. Step 5: Solve for x
    x = 209,902,144/13,240
  6. Step 6: Final answer
    x = 15,853.64

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.