Home / 13,993.75-20,982.12-5,666.95

Finding the Fourth Proportional to 13,993.75, 20,982.12 and 5,666.95

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Solution

The fourth proportional to 13,993.75, 20,982.12 and 5,666.95 is: 8,496.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.75 : 20,982.12 = 5,666.95 : x
  2. Step 2: Convert to fraction form
    13,993.75/20,982.12 = 5,666.95/x
  3. Step 3: Cross multiply
    13,993.75x = 20,982.12 × 5,666.95
  4. Step 4: Simplify right side
    13,993.75x = 118,904,624.93
  5. Step 5: Solve for x
    x = 118,904,624.93/13,993.75
  6. Step 6: Final answer
    x = 8,496.98

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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.