Home / 9,855.68-14,778.60-3,279.56

Finding the Fourth Proportional to 9,855.68, 14,778.60 and 3,279.56

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Solution

The fourth proportional to 9,855.68, 14,778.60 and 3,279.56 is: 4,917.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,855.68 : 14,778.60 = 3,279.56 : x
  2. Step 2: Convert to fraction form
    9,855.68/14,778.60 = 3,279.56/x
  3. Step 3: Cross multiply
    9,855.68x = 14,778.60 × 3,279.56
  4. Step 4: Simplify right side
    9,855.68x = 48,467,305.42
  5. Step 5: Solve for x
    x = 48,467,305.42/9,855.68
  6. Step 6: Final answer
    x = 4,917.70

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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.