Home / 17,431.66-26,099.64-12,171.91

Finding the Fourth Proportional to 17,431.66, 26,099.64 and 12,171.91

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Solution

The fourth proportional to 17,431.66, 26,099.64 and 12,171.91 is: 18,224.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,431.66 : 26,099.64 = 12,171.91 : x
  2. Step 2: Convert to fraction form
    17,431.66/26,099.64 = 12,171.91/x
  3. Step 3: Cross multiply
    17,431.66x = 26,099.64 × 12,171.91
  4. Step 4: Simplify right side
    17,431.66x = 317,682,469.11
  5. Step 5: Solve for x
    x = 317,682,469.11/17,431.66
  6. Step 6: Final answer
    x = 18,224.45

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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.