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Finding the Third Proportional to 7,479 and 10,557

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Solution

The third proportional to 7,479 and 10,557 is: 14,901.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479 : 10,557 = 10,557 : x
  2. Step 2: Convert to fraction form
    7,479/10,557 = 10,557/x
  3. Step 3: Cross multiply
    7,479x = 10,557 × 10,557
  4. Step 4: Simplify right side
    7,479x = 111,450,249
  5. Step 5: Solve for x
    x = 111,450,249/7,479
  6. Step 6: Final answer
    x = 14,901.76

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.