Home / 11,408.76-17,113.62-3,618.12

Finding the Fourth Proportional to 11,408.76, 17,113.62 and 3,618.12

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Solution

The fourth proportional to 11,408.76, 17,113.62 and 3,618.12 is: 5,427.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.76 : 17,113.62 = 3,618.12 : x
  2. Step 2: Convert to fraction form
    11,408.76/17,113.62 = 3,618.12/x
  3. Step 3: Cross multiply
    11,408.76x = 17,113.62 × 3,618.12
  4. Step 4: Simplify right side
    11,408.76x = 61,919,130.79
  5. Step 5: Solve for x
    x = 61,919,130.79/11,408.76
  6. Step 6: Final answer
    x = 5,427.33

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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.