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Finding the Third Proportional to 8,528.63 and 18,415.13

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Solution

The third proportional to 8,528.63 and 18,415.13 is: 39,762.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.63 : 18,415.13 = 18,415.13 : x
  2. Step 2: Convert to fraction form
    8,528.63/18,415.13 = 18,415.13/x
  3. Step 3: Cross multiply
    8,528.63x = 18,415.13 × 18,415.13
  4. Step 4: Simplify right side
    8,528.63x = 339,116,828.77
  5. Step 5: Solve for x
    x = 339,116,828.77/8,528.63
  6. Step 6: Final answer
    x = 39,762.19

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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.