Home / 11,942.80-16,443.42-10,835.64

Finding the Fourth Proportional to 11,942.80, 16,443.42 and 10,835.64

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Solution

The fourth proportional to 11,942.80, 16,443.42 and 10,835.64 is: 14,919.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.80 : 16,443.42 = 10,835.64 : x
  2. Step 2: Convert to fraction form
    11,942.80/16,443.42 = 10,835.64/x
  3. Step 3: Cross multiply
    11,942.80x = 16,443.42 × 10,835.64
  4. Step 4: Simplify right side
    11,942.80x = 178,174,937.91
  5. Step 5: Solve for x
    x = 178,174,937.91/11,942.80
  6. Step 6: Final answer
    x = 14,919.02

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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.