Home / 13,181.43-19,863.84-11,932.40

Finding the Fourth Proportional to 13,181.43, 19,863.84 and 11,932.40

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Solution

The fourth proportional to 13,181.43, 19,863.84 and 11,932.40 is: 17,981.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.43 : 19,863.84 = 11,932.40 : x
  2. Step 2: Convert to fraction form
    13,181.43/19,863.84 = 11,932.40/x
  3. Step 3: Cross multiply
    13,181.43x = 19,863.84 × 11,932.40
  4. Step 4: Simplify right side
    13,181.43x = 237,023,371.36
  5. Step 5: Solve for x
    x = 237,023,371.36/13,181.43
  6. Step 6: Final answer
    x = 17,981.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.