Home / 9,921.21-14,886.68-3,997.83

Finding the Fourth Proportional to 9,921.21, 14,886.68 and 3,997.83

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Solution

The fourth proportional to 9,921.21, 14,886.68 and 3,997.83 is: 5,998.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.21 : 14,886.68 = 3,997.83 : x
  2. Step 2: Convert to fraction form
    9,921.21/14,886.68 = 3,997.83/x
  3. Step 3: Cross multiply
    9,921.21x = 14,886.68 × 3,997.83
  4. Step 4: Simplify right side
    9,921.21x = 59,514,451.74
  5. Step 5: Solve for x
    x = 59,514,451.74/9,921.21
  6. Step 6: Final answer
    x = 5,998.71

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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.