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Finding the Third Proportional to 6,521 and 8,985

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Solution

The third proportional to 6,521 and 8,985 is: 12,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,521 : 8,985 = 8,985 : x
  2. Step 2: Convert to fraction form
    6,521/8,985 = 8,985/x
  3. Step 3: Cross multiply
    6,521x = 8,985 × 8,985
  4. Step 4: Simplify right side
    6,521x = 80,730,225
  5. Step 5: Solve for x
    x = 80,730,225/6,521
  6. Step 6: Final answer
    x = 12,380.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.