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Finding the Fourth Proportional to 6,954.28, 10,446.78 and 5,418.28

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Solution

The fourth proportional to 6,954.28, 10,446.78 and 5,418.28 is: 8,139.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,954.28 : 10,446.78 = 5,418.28 : x
  2. Step 2: Convert to fraction form
    6,954.28/10,446.78 = 5,418.28/x
  3. Step 3: Cross multiply
    6,954.28x = 10,446.78 × 5,418.28
  4. Step 4: Simplify right side
    6,954.28x = 56,603,579.14
  5. Step 5: Solve for x
    x = 56,603,579.14/6,954.28
  6. Step 6: Final answer
    x = 8,139.39

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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.