Home / 13,993.76-20,996.31-5,671.62

Finding the Fourth Proportional to 13,993.76, 20,996.31 and 5,671.62

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Solution

The fourth proportional to 13,993.76, 20,996.31 and 5,671.62 is: 8,509.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.76 : 20,996.31 = 5,671.62 : x
  2. Step 2: Convert to fraction form
    13,993.76/20,996.31 = 5,671.62/x
  3. Step 3: Cross multiply
    13,993.76x = 20,996.31 × 5,671.62
  4. Step 4: Simplify right side
    13,993.76x = 119,083,112.99
  5. Step 5: Solve for x
    x = 119,083,112.99/13,993.76
  6. Step 6: Final answer
    x = 8,509.73

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1.5x scale

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.