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Finding the Third Proportional to 5,535.84 and 7,688.67

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Solution

The third proportional to 5,535.84 and 7,688.67 is: 10,678.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.84 : 7,688.67 = 7,688.67 : x
  2. Step 2: Convert to fraction form
    5,535.84/7,688.67 = 7,688.67/x
  3. Step 3: Cross multiply
    5,535.84x = 7,688.67 × 7,688.67
  4. Step 4: Simplify right side
    5,535.84x = 59,115,675.20
  5. Step 5: Solve for x
    x = 59,115,675.20/5,535.84
  6. Step 6: Final answer
    x = 10,678.71

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.