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Finding the Third Proportional to 7,685 and 11,597.50

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Solution

The third proportional to 7,685 and 11,597.50 is: 17,501.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685 : 11,597.50 = 11,597.50 : x
  2. Step 2: Convert to fraction form
    7,685/11,597.50 = 11,597.50/x
  3. Step 3: Cross multiply
    7,685x = 11,597.50 × 11,597.50
  4. Step 4: Simplify right side
    7,685x = 134,502,006.25
  5. Step 5: Solve for x
    x = 134,502,006.25/7,685
  6. Step 6: Final answer
    x = 17,501.89

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.