Home / 11,408.21-17,117.78-5,561.63

Finding the Fourth Proportional to 11,408.21, 17,117.78 and 5,561.63

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Solution

The fourth proportional to 11,408.21, 17,117.78 and 5,561.63 is: 8,345.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,408.21 : 17,117.78 = 5,561.63 : x
  2. Step 2: Convert to fraction form
    11,408.21/17,117.78 = 5,561.63/x
  3. Step 3: Cross multiply
    11,408.21x = 17,117.78 × 5,561.63
  4. Step 4: Simplify right side
    11,408.21x = 95,202,758.78
  5. Step 5: Solve for x
    x = 95,202,758.78/11,408.21
  6. Step 6: Final answer
    x = 8,345.11

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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.