Home / 11,428.28-17,143.17-4,408.36

Finding the Fourth Proportional to 11,428.28, 17,143.17 and 4,408.36

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Solution

The fourth proportional to 11,428.28, 17,143.17 and 4,408.36 is: 6,612.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.28 : 17,143.17 = 4,408.36 : x
  2. Step 2: Convert to fraction form
    11,428.28/17,143.17 = 4,408.36/x
  3. Step 3: Cross multiply
    11,428.28x = 17,143.17 × 4,408.36
  4. Step 4: Simplify right side
    11,428.28x = 75,573,222.04
  5. Step 5: Solve for x
    x = 75,573,222.04/11,428.28
  6. Step 6: Final answer
    x = 6,612.83

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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.