Home / 19,664.32-27,138.96-11,706.56

Finding the Fourth Proportional to 19,664.32, 27,138.96 and 11,706.56

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Solution

The fourth proportional to 19,664.32, 27,138.96 and 11,706.56 is: 16,156.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.32 : 27,138.96 = 11,706.56 : x
  2. Step 2: Convert to fraction form
    19,664.32/27,138.96 = 11,706.56/x
  3. Step 3: Cross multiply
    19,664.32x = 27,138.96 × 11,706.56
  4. Step 4: Simplify right side
    19,664.32x = 317,703,863.58
  5. Step 5: Solve for x
    x = 317,703,863.58/19,664.32
  6. Step 6: Final answer
    x = 16,156.36

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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.