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Finding the Third Proportional to 11,260 and 14,890

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Solution

The third proportional to 11,260 and 14,890 is: 19,690.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,260 : 14,890 = 14,890 : x
  2. Step 2: Convert to fraction form
    11,260/14,890 = 14,890/x
  3. Step 3: Cross multiply
    11,260x = 14,890 × 14,890
  4. Step 4: Simplify right side
    11,260x = 221,712,100
  5. Step 5: Solve for x
    x = 221,712,100/11,260
  6. Step 6: Final answer
    x = 19,690.24

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.