Home / 11,246.40-16,869.96-5,401.80

Finding the Fourth Proportional to 11,246.40, 16,869.96 and 5,401.80

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Solution

The fourth proportional to 11,246.40, 16,869.96 and 5,401.80 is: 8,102.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,246.40 : 16,869.96 = 5,401.80 : x
  2. Step 2: Convert to fraction form
    11,246.40/16,869.96 = 5,401.80/x
  3. Step 3: Cross multiply
    11,246.40x = 16,869.96 × 5,401.80
  4. Step 4: Simplify right side
    11,246.40x = 91,128,149.93
  5. Step 5: Solve for x
    x = 91,128,149.93/11,246.40
  6. Step 6: Final answer
    x = 8,102.87

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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.