Home / 13,989.36-20,974.32-6,193.92

Finding the Fourth Proportional to 13,989.36, 20,974.32 and 6,193.92

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Solution

The fourth proportional to 13,989.36, 20,974.32 and 6,193.92 is: 9,286.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989.36 : 20,974.32 = 6,193.92 : x
  2. Step 2: Convert to fraction form
    13,989.36/20,974.32 = 6,193.92/x
  3. Step 3: Cross multiply
    13,989.36x = 20,974.32 × 6,193.92
  4. Step 4: Simplify right side
    13,989.36x = 129,913,260.13
  5. Step 5: Solve for x
    x = 129,913,260.13/13,989.36
  6. Step 6: Final answer
    x = 9,286.58

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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.