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Finding the Fourth Proportional to 11,150.64, 16,745.40 and 10,239.12

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Solution

The fourth proportional to 11,150.64, 16,745.40 and 10,239.12 is: 15,376.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,150.64 : 16,745.40 = 10,239.12 : x
  2. Step 2: Convert to fraction form
    11,150.64/16,745.40 = 10,239.12/x
  3. Step 3: Cross multiply
    11,150.64x = 16,745.40 × 10,239.12
  4. Step 4: Simplify right side
    11,150.64x = 171,458,160.05
  5. Step 5: Solve for x
    x = 171,458,160.05/11,150.64
  6. Step 6: Final answer
    x = 15,376.53

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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.