Home / 11,829.72-17,747.20-3,510.40

Finding the Fourth Proportional to 11,829.72, 17,747.20 and 3,510.40

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Solution

The fourth proportional to 11,829.72, 17,747.20 and 3,510.40 is: 5,266.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,829.72 : 17,747.20 = 3,510.40 : x
  2. Step 2: Convert to fraction form
    11,829.72/17,747.20 = 3,510.40/x
  3. Step 3: Cross multiply
    11,829.72x = 17,747.20 × 3,510.40
  4. Step 4: Simplify right side
    11,829.72x = 62,299,770.88
  5. Step 5: Solve for x
    x = 62,299,770.88/11,829.72
  6. Step 6: Final answer
    x = 5,266.38

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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.