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Finding the Third Proportional to 12,555 and 14,377.50

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Solution

The third proportional to 12,555 and 14,377.50 is: 16,464.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555 : 14,377.50 = 14,377.50 : x
  2. Step 2: Convert to fraction form
    12,555/14,377.50 = 14,377.50/x
  3. Step 3: Cross multiply
    12,555x = 14,377.50 × 14,377.50
  4. Step 4: Simplify right side
    12,555x = 206,712,506.25
  5. Step 5: Solve for x
    x = 206,712,506.25/12,555
  6. Step 6: Final answer
    x = 16,464.56

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.