Home / 11,685.80-17,530.44-3,892.76

Finding the Fourth Proportional to 11,685.80, 17,530.44 and 3,892.76

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Solution

The fourth proportional to 11,685.80, 17,530.44 and 3,892.76 is: 5,839.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.80 : 17,530.44 = 3,892.76 : x
  2. Step 2: Convert to fraction form
    11,685.80/17,530.44 = 3,892.76/x
  3. Step 3: Cross multiply
    11,685.80x = 17,530.44 × 3,892.76
  4. Step 4: Simplify right side
    11,685.80x = 68,241,795.61
  5. Step 5: Solve for x
    x = 68,241,795.61/11,685.80
  6. Step 6: Final answer
    x = 5,839.72

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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.