Home / 12,332.81-17,021.41-11,922.75

Finding the Fourth Proportional to 12,332.81, 17,021.41 and 11,922.75

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Solution

The fourth proportional to 12,332.81, 17,021.41 and 11,922.75 is: 16,455.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,332.81 : 17,021.41 = 11,922.75 : x
  2. Step 2: Convert to fraction form
    12,332.81/17,021.41 = 11,922.75/x
  3. Step 3: Cross multiply
    12,332.81x = 17,021.41 × 11,922.75
  4. Step 4: Simplify right side
    12,332.81x = 202,942,016.08
  5. Step 5: Solve for x
    x = 202,942,016.08/12,332.81
  6. Step 6: Final answer
    x = 16,455.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.