Home / 19,856.68-27,399.94-11,787.46

Finding the Fourth Proportional to 19,856.68, 27,399.94 and 11,787.46

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Solution

The fourth proportional to 19,856.68, 27,399.94 and 11,787.46 is: 16,265.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.68 : 27,399.94 = 11,787.46 : x
  2. Step 2: Convert to fraction form
    19,856.68/27,399.94 = 11,787.46/x
  3. Step 3: Cross multiply
    19,856.68x = 27,399.94 × 11,787.46
  4. Step 4: Simplify right side
    19,856.68x = 322,975,696.75
  5. Step 5: Solve for x
    x = 322,975,696.75/19,856.68
  6. Step 6: Final answer
    x = 16,265.34

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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.