Home / 19,940.63-27,505.88-11,868.86

Finding the Fourth Proportional to 19,940.63, 27,505.88 and 11,868.86

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Solution

The fourth proportional to 19,940.63, 27,505.88 and 11,868.86 is: 16,371.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.63 : 27,505.88 = 11,868.86 : x
  2. Step 2: Convert to fraction form
    19,940.63/27,505.88 = 11,868.86/x
  3. Step 3: Cross multiply
    19,940.63x = 27,505.88 × 11,868.86
  4. Step 4: Simplify right side
    19,940.63x = 326,463,331.04
  5. Step 5: Solve for x
    x = 326,463,331.04/19,940.63
  6. Step 6: Final answer
    x = 16,371.77

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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.