Home / 11,868.13-17,803.21-3,103.04

Finding the Fourth Proportional to 11,868.13, 17,803.21 and 3,103.04

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Solution

The fourth proportional to 11,868.13, 17,803.21 and 3,103.04 is: 4,654.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868.13 : 17,803.21 = 3,103.04 : x
  2. Step 2: Convert to fraction form
    11,868.13/17,803.21 = 3,103.04/x
  3. Step 3: Cross multiply
    11,868.13x = 17,803.21 × 3,103.04
  4. Step 4: Simplify right side
    11,868.13x = 55,243,983.74
  5. Step 5: Solve for x
    x = 55,243,983.74/11,868.13
  6. Step 6: Final answer
    x = 4,654.82

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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.