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Finding the Third Proportional to 7,858 and 10,490.75

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Solution

The third proportional to 7,858 and 10,490.75 is: 14,005.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858 : 10,490.75 = 10,490.75 : x
  2. Step 2: Convert to fraction form
    7,858/10,490.75 = 10,490.75/x
  3. Step 3: Cross multiply
    7,858x = 10,490.75 × 10,490.75
  4. Step 4: Simplify right side
    7,858x = 110,055,835.56
  5. Step 5: Solve for x
    x = 110,055,835.56/7,858
  6. Step 6: Final answer
    x = 14,005.58

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.