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Finding the Third Proportional to 4,590.56 and 9,909.56

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Solution

The third proportional to 4,590.56 and 9,909.56 is: 21,391.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,590.56 : 9,909.56 = 9,909.56 : x
  2. Step 2: Convert to fraction form
    4,590.56/9,909.56 = 9,909.56/x
  3. Step 3: Cross multiply
    4,590.56x = 9,909.56 × 9,909.56
  4. Step 4: Simplify right side
    4,590.56x = 98,199,428.94
  5. Step 5: Solve for x
    x = 98,199,428.94/4,590.56
  6. Step 6: Final answer
    x = 21,391.59

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.