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Finding the Third Proportional to 8,520.19 and 13,266.28

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Solution

The third proportional to 8,520.19 and 13,266.28 is: 20,656.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.19 : 13,266.28 = 13,266.28 : x
  2. Step 2: Convert to fraction form
    8,520.19/13,266.28 = 13,266.28/x
  3. Step 3: Cross multiply
    8,520.19x = 13,266.28 × 13,266.28
  4. Step 4: Simplify right side
    8,520.19x = 175,994,218.20
  5. Step 5: Solve for x
    x = 175,994,218.20/8,520.19
  6. Step 6: Final answer
    x = 20,656.14

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.