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Finding the Fourth Proportional to 10,502, 15,755.56 and 3,206

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Solution

The fourth proportional to 10,502, 15,755.56 and 3,206 is: 4,809.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502 : 15,755.56 = 3,206 : x
  2. Step 2: Convert to fraction form
    10,502/15,755.56 = 3,206/x
  3. Step 3: Cross multiply
    10,502x = 15,755.56 × 3,206
  4. Step 4: Simplify right side
    10,502x = 50,512,325.36
  5. Step 5: Solve for x
    x = 50,512,325.36/10,502
  6. Step 6: Final answer
    x = 4,809.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.