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Finding the Third Proportional to 8,669.63 and 18,655.13

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Solution

The third proportional to 8,669.63 and 18,655.13 is: 40,141.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.63 : 18,655.13 = 18,655.13 : x
  2. Step 2: Convert to fraction form
    8,669.63/18,655.13 = 18,655.13/x
  3. Step 3: Cross multiply
    8,669.63x = 18,655.13 × 18,655.13
  4. Step 4: Simplify right side
    8,669.63x = 348,013,688.77
  5. Step 5: Solve for x
    x = 348,013,688.77/8,669.63
  6. Step 6: Final answer
    x = 40,141.72

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.