Home / 7,507.72-11,249.69-3,996.78

Finding the Fourth Proportional to 7,507.72, 11,249.69 and 3,996.78

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Solution

The fourth proportional to 7,507.72, 11,249.69 and 3,996.78 is: 5,988.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,507.72 : 11,249.69 = 3,996.78 : x
  2. Step 2: Convert to fraction form
    7,507.72/11,249.69 = 3,996.78/x
  3. Step 3: Cross multiply
    7,507.72x = 11,249.69 × 3,996.78
  4. Step 4: Simplify right side
    7,507.72x = 44,962,536.00
  5. Step 5: Solve for x
    x = 44,962,536.00/7,507.72
  6. Step 6: Final answer
    x = 5,988.84

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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.