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Finding the Third Proportional to 11,212.50 and 14,530.50

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Solution

The third proportional to 11,212.50 and 14,530.50 is: 18,830.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.50 : 14,530.50 = 14,530.50 : x
  2. Step 2: Convert to fraction form
    11,212.50/14,530.50 = 14,530.50/x
  3. Step 3: Cross multiply
    11,212.50x = 14,530.50 × 14,530.50
  4. Step 4: Simplify right side
    11,212.50x = 211,135,430.25
  5. Step 5: Solve for x
    x = 211,135,430.25/11,212.50
  6. Step 6: Final answer
    x = 18,830.36

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.