Home / 9,997.21-14,998.11-3,423.39

Finding the Fourth Proportional to 9,997.21, 14,998.11 and 3,423.39

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Solution

The fourth proportional to 9,997.21, 14,998.11 and 3,423.39 is: 5,135.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,997.21 : 14,998.11 = 3,423.39 : x
  2. Step 2: Convert to fraction form
    9,997.21/14,998.11 = 3,423.39/x
  3. Step 3: Cross multiply
    9,997.21x = 14,998.11 × 3,423.39
  4. Step 4: Simplify right side
    9,997.21x = 51,344,379.79
  5. Step 5: Solve for x
    x = 51,344,379.79/9,997.21
  6. Step 6: Final answer
    x = 5,135.87

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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.