Home / 12,813.66-19,121.27-11,337.44

Finding the Fourth Proportional to 12,813.66, 19,121.27 and 11,337.44

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Solution

The fourth proportional to 12,813.66, 19,121.27 and 11,337.44 is: 16,918.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,813.66 : 19,121.27 = 11,337.44 : x
  2. Step 2: Convert to fraction form
    12,813.66/19,121.27 = 11,337.44/x
  3. Step 3: Cross multiply
    12,813.66x = 19,121.27 × 11,337.44
  4. Step 4: Simplify right side
    12,813.66x = 216,786,099.06
  5. Step 5: Solve for x
    x = 216,786,099.06/12,813.66
  6. Step 6: Final answer
    x = 16,918.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.