Home / 7,896.42-11,819.97-5,818.77

Finding the Fourth Proportional to 7,896.42, 11,819.97 and 5,818.77

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Solution

The fourth proportional to 7,896.42, 11,819.97 and 5,818.77 is: 8,709.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,896.42 : 11,819.97 = 5,818.77 : x
  2. Step 2: Convert to fraction form
    7,896.42/11,819.97 = 5,818.77/x
  3. Step 3: Cross multiply
    7,896.42x = 11,819.97 × 5,818.77
  4. Step 4: Simplify right side
    7,896.42x = 68,777,686.84
  5. Step 5: Solve for x
    x = 68,777,686.84/7,896.42
  6. Step 6: Final answer
    x = 8,709.98

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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.