Home / 11,250.36-16,879.86-5,408.76

Finding the Fourth Proportional to 11,250.36, 16,879.86 and 5,408.76

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Solution

The fourth proportional to 11,250.36, 16,879.86 and 5,408.76 is: 8,115.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,250.36 : 16,879.86 = 5,408.76 : x
  2. Step 2: Convert to fraction form
    11,250.36/16,879.86 = 5,408.76/x
  3. Step 3: Cross multiply
    11,250.36x = 16,879.86 × 5,408.76
  4. Step 4: Simplify right side
    11,250.36x = 91,299,111.57
  5. Step 5: Solve for x
    x = 91,299,111.57/11,250.36
  6. Step 6: Final answer
    x = 8,115.22

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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.