Home / 16,853.22-25,286.40-6,990

Finding the Fourth Proportional to 16,853.22, 25,286.40 and 6,990

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Solution

The fourth proportional to 16,853.22, 25,286.40 and 6,990 is: 10,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,853.22 : 25,286.40 = 6,990 : x
  2. Step 2: Convert to fraction form
    16,853.22/25,286.40 = 6,990/x
  3. Step 3: Cross multiply
    16,853.22x = 25,286.40 × 6,990
  4. Step 4: Simplify right side
    16,853.22x = 176,751,936
  5. Step 5: Solve for x
    x = 176,751,936/16,853.22
  6. Step 6: Final answer
    x = 10,487.72

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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.