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Finding the Third Proportional to 8,515.13 and 13,002.19

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Solution

The third proportional to 8,515.13 and 13,002.19 is: 19,853.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.13 : 13,002.19 = 13,002.19 : x
  2. Step 2: Convert to fraction form
    8,515.13/13,002.19 = 13,002.19/x
  3. Step 3: Cross multiply
    8,515.13x = 13,002.19 × 13,002.19
  4. Step 4: Simplify right side
    8,515.13x = 169,056,879.79
  5. Step 5: Solve for x
    x = 169,056,879.79/8,515.13
  6. Step 6: Final answer
    x = 19,853.72

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.