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Finding the Fourth Proportional to 11,868.82, 17,803.06 and 3,548.90

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Solution

The fourth proportional to 11,868.82, 17,803.06 and 3,548.90 is: 5,323.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868.82 : 17,803.06 = 3,548.90 : x
  2. Step 2: Convert to fraction form
    11,868.82/17,803.06 = 3,548.90/x
  3. Step 3: Cross multiply
    11,868.82x = 17,803.06 × 3,548.90
  4. Step 4: Simplify right side
    11,868.82x = 63,181,279.63
  5. Step 5: Solve for x
    x = 63,181,279.63/11,868.82
  6. Step 6: Final answer
    x = 5,323.30

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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.