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Finding the Third Proportional to 7,028 and 9,842

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Solution

The third proportional to 7,028 and 9,842 is: 13,782.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,028 : 9,842 = 9,842 : x
  2. Step 2: Convert to fraction form
    7,028/9,842 = 9,842/x
  3. Step 3: Cross multiply
    7,028x = 9,842 × 9,842
  4. Step 4: Simplify right side
    7,028x = 96,864,964
  5. Step 5: Solve for x
    x = 96,864,964/7,028
  6. Step 6: Final answer
    x = 13,782.72

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.