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Finding the Third Proportional to 5,421 and 9,558

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Solution

The third proportional to 5,421 and 9,558 is: 16,852.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421 : 9,558 = 9,558 : x
  2. Step 2: Convert to fraction form
    5,421/9,558 = 9,558/x
  3. Step 3: Cross multiply
    5,421x = 9,558 × 9,558
  4. Step 4: Simplify right side
    5,421x = 91,355,364
  5. Step 5: Solve for x
    x = 91,355,364/5,421
  6. Step 6: Final answer
    x = 16,852.12

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.