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Finding the Third Proportional to 5,610 and 8,430

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Solution

The third proportional to 5,610 and 8,430 is: 12,667.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,610 : 8,430 = 8,430 : x
  2. Step 2: Convert to fraction form
    5,610/8,430 = 8,430/x
  3. Step 3: Cross multiply
    5,610x = 8,430 × 8,430
  4. Step 4: Simplify right side
    5,610x = 71,064,900
  5. Step 5: Solve for x
    x = 71,064,900/5,610
  6. Step 6: Final answer
    x = 12,667.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.