Home / 7,408.32-11,102.76-5,451.36

Finding the Fourth Proportional to 7,408.32, 11,102.76 and 5,451.36

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Solution

The fourth proportional to 7,408.32, 11,102.76 and 5,451.36 is: 8,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.32 : 11,102.76 = 5,451.36 : x
  2. Step 2: Convert to fraction form
    7,408.32/11,102.76 = 5,451.36/x
  3. Step 3: Cross multiply
    7,408.32x = 11,102.76 × 5,451.36
  4. Step 4: Simplify right side
    7,408.32x = 60,525,141.75
  5. Step 5: Solve for x
    x = 60,525,141.75/7,408.32
  6. Step 6: Final answer
    x = 8,169.89

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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.