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Finding the Third Proportional to 6,445.50 and 13,653.63

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Solution

The third proportional to 6,445.50 and 13,653.63 is: 28,922.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,445.50 : 13,653.63 = 13,653.63 : x
  2. Step 2: Convert to fraction form
    6,445.50/13,653.63 = 13,653.63/x
  3. Step 3: Cross multiply
    6,445.50x = 13,653.63 × 13,653.63
  4. Step 4: Simplify right side
    6,445.50x = 186,421,475.64
  5. Step 5: Solve for x
    x = 186,421,475.64/6,445.50
  6. Step 6: Final answer
    x = 28,922.73

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.