Home / 12,974.99-19,391.38-9,472.37

Finding the Fourth Proportional to 12,974.99, 19,391.38 and 9,472.37

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Solution

The fourth proportional to 12,974.99, 19,391.38 and 9,472.37 is: 14,156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,974.99 : 19,391.38 = 9,472.37 : x
  2. Step 2: Convert to fraction form
    12,974.99/19,391.38 = 9,472.37/x
  3. Step 3: Cross multiply
    12,974.99x = 19,391.38 × 9,472.37
  4. Step 4: Simplify right side
    12,974.99x = 183,682,205.53
  5. Step 5: Solve for x
    x = 183,682,205.53/12,974.99
  6. Step 6: Final answer
    x = 14,156.64

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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.