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Finding the Third Proportional to 7,328.81 and 11,351.63

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Solution

The third proportional to 7,328.81 and 11,351.63 is: 17,582.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.81 : 11,351.63 = 11,351.63 : x
  2. Step 2: Convert to fraction form
    7,328.81/11,351.63 = 11,351.63/x
  3. Step 3: Cross multiply
    7,328.81x = 11,351.63 × 11,351.63
  4. Step 4: Simplify right side
    7,328.81x = 128,859,390.14
  5. Step 5: Solve for x
    x = 128,859,390.14/7,328.81
  6. Step 6: Final answer
    x = 17,582.57

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.