Home / 10,212.72-15,319.52-3,192.87

Finding the Fourth Proportional to 10,212.72, 15,319.52 and 3,192.87

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Solution

The fourth proportional to 10,212.72, 15,319.52 and 3,192.87 is: 4,789.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,212.72 : 15,319.52 = 3,192.87 : x
  2. Step 2: Convert to fraction form
    10,212.72/15,319.52 = 3,192.87/x
  3. Step 3: Cross multiply
    10,212.72x = 15,319.52 × 3,192.87
  4. Step 4: Simplify right side
    10,212.72x = 48,913,198.62
  5. Step 5: Solve for x
    x = 48,913,198.62/10,212.72
  6. Step 6: Final answer
    x = 4,789.44

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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.