Home / 7,634.72-11,431.60-4,342.88

Finding the Fourth Proportional to 7,634.72, 11,431.60 and 4,342.88

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Solution

The fourth proportional to 7,634.72, 11,431.60 and 4,342.88 is: 6,502.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,634.72 : 11,431.60 = 4,342.88 : x
  2. Step 2: Convert to fraction form
    7,634.72/11,431.60 = 4,342.88/x
  3. Step 3: Cross multiply
    7,634.72x = 11,431.60 × 4,342.88
  4. Step 4: Simplify right side
    7,634.72x = 49,646,067.01
  5. Step 5: Solve for x
    x = 49,646,067.01/7,634.72
  6. Step 6: Final answer
    x = 6,502.67

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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.