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Finding the Third Proportional to 7,710 and 15,036

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Solution

The third proportional to 7,710 and 15,036 is: 29,323.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710 : 15,036 = 15,036 : x
  2. Step 2: Convert to fraction form
    7,710/15,036 = 15,036/x
  3. Step 3: Cross multiply
    7,710x = 15,036 × 15,036
  4. Step 4: Simplify right side
    7,710x = 226,081,296
  5. Step 5: Solve for x
    x = 226,081,296/7,710
  6. Step 6: Final answer
    x = 29,323.13

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.