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Finding the Third Proportional to 10,800 and 14,580

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Solution

The third proportional to 10,800 and 14,580 is: 19,683

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,800 : 14,580 = 14,580 : x
  2. Step 2: Convert to fraction form
    10,800/14,580 = 14,580/x
  3. Step 3: Cross multiply
    10,800x = 14,580 × 14,580
  4. Step 4: Simplify right side
    10,800x = 212,576,400
  5. Step 5: Solve for x
    x = 212,576,400/10,800
  6. Step 6: Final answer
    x = 19,683

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.