Home / 11,977.62-16,529.30-6,942.20

Finding the Fourth Proportional to 11,977.62, 16,529.30 and 6,942.20

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Solution

The fourth proportional to 11,977.62, 16,529.30 and 6,942.20 is: 9,580.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.62 : 16,529.30 = 6,942.20 : x
  2. Step 2: Convert to fraction form
    11,977.62/16,529.30 = 6,942.20/x
  3. Step 3: Cross multiply
    11,977.62x = 16,529.30 × 6,942.20
  4. Step 4: Simplify right side
    11,977.62x = 114,749,589.10
  5. Step 5: Solve for x
    x = 114,749,589.10/11,977.62
  6. Step 6: Final answer
    x = 9,580.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.