Home / 13,076.05-19,603.09-9,115.66

Finding the Fourth Proportional to 13,076.05, 19,603.09 and 9,115.66

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Solution

The fourth proportional to 13,076.05, 19,603.09 and 9,115.66 is: 13,665.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.05 : 19,603.09 = 9,115.66 : x
  2. Step 2: Convert to fraction form
    13,076.05/19,603.09 = 9,115.66/x
  3. Step 3: Cross multiply
    13,076.05x = 19,603.09 × 9,115.66
  4. Step 4: Simplify right side
    13,076.05x = 178,695,103.39
  5. Step 5: Solve for x
    x = 178,695,103.39/13,076.05
  6. Step 6: Final answer
    x = 13,665.83

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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.