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Finding the Third Proportional to 6,321 and 6,847.50

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Solution

The third proportional to 6,321 and 6,847.50 is: 7,417.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321 : 6,847.50 = 6,847.50 : x
  2. Step 2: Convert to fraction form
    6,321/6,847.50 = 6,847.50/x
  3. Step 3: Cross multiply
    6,321x = 6,847.50 × 6,847.50
  4. Step 4: Simplify right side
    6,321x = 46,888,256.25
  5. Step 5: Solve for x
    x = 46,888,256.25/6,321
  6. Step 6: Final answer
    x = 7,417.85

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.