Home / 11,408.28-15,742.72-6,694.08

Finding the Fourth Proportional to 11,408.28, 15,742.72 and 6,694.08

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Solution

The fourth proportional to 11,408.28, 15,742.72 and 6,694.08 is: 9,237.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.28 : 15,742.72 = 6,694.08 : x
  2. Step 2: Convert to fraction form
    11,408.28/15,742.72 = 6,694.08/x
  3. Step 3: Cross multiply
    11,408.28x = 15,742.72 × 6,694.08
  4. Step 4: Simplify right side
    11,408.28x = 105,383,027.10
  5. Step 5: Solve for x
    x = 105,383,027.10/11,408.28
  6. Step 6: Final answer
    x = 9,237.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.