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Finding the Third Proportional to 4,381.13 and 9,490.88

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Solution

The third proportional to 4,381.13 and 9,490.88 is: 20,560.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,381.13 : 9,490.88 = 9,490.88 : x
  2. Step 2: Convert to fraction form
    4,381.13/9,490.88 = 9,490.88/x
  3. Step 3: Cross multiply
    4,381.13x = 9,490.88 × 9,490.88
  4. Step 4: Simplify right side
    4,381.13x = 90,076,708.27
  5. Step 5: Solve for x
    x = 90,076,708.27/4,381.13
  6. Step 6: Final answer
    x = 20,560.18

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.