Home / 18,787.82-25,922.88-11,232.86

Finding the Fourth Proportional to 18,787.82, 25,922.88 and 11,232.86

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Solution

The fourth proportional to 18,787.82, 25,922.88 and 11,232.86 is: 15,498.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.82 : 25,922.88 = 11,232.86 : x
  2. Step 2: Convert to fraction form
    18,787.82/25,922.88 = 11,232.86/x
  3. Step 3: Cross multiply
    18,787.82x = 25,922.88 × 11,232.86
  4. Step 4: Simplify right side
    18,787.82x = 291,187,952.22
  5. Step 5: Solve for x
    x = 291,187,952.22/18,787.82
  6. Step 6: Final answer
    x = 15,498.77

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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.