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Finding the Third Proportional to 5,820 and 8,913

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Solution

The third proportional to 5,820 and 8,913 is: 13,649.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,820 : 8,913 = 8,913 : x
  2. Step 2: Convert to fraction form
    5,820/8,913 = 8,913/x
  3. Step 3: Cross multiply
    5,820x = 8,913 × 8,913
  4. Step 4: Simplify right side
    5,820x = 79,441,569
  5. Step 5: Solve for x
    x = 79,441,569/5,820
  6. Step 6: Final answer
    x = 13,649.75

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.