Home / 11,321.40-16,983.70-3,529.40

Finding the Fourth Proportional to 11,321.40, 16,983.70 and 3,529.40

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Solution

The fourth proportional to 11,321.40, 16,983.70 and 3,529.40 is: 5,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.40 : 16,983.70 = 3,529.40 : x
  2. Step 2: Convert to fraction form
    11,321.40/16,983.70 = 3,529.40/x
  3. Step 3: Cross multiply
    11,321.40x = 16,983.70 × 3,529.40
  4. Step 4: Simplify right side
    11,321.40x = 59,942,270.78
  5. Step 5: Solve for x
    x = 59,942,270.78/11,321.40
  6. Step 6: Final answer
    x = 5,294.60

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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.