Home / 19,816.71-27,346.21-11,863.32

Finding the Fourth Proportional to 19,816.71, 27,346.21 and 11,863.32

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Solution

The fourth proportional to 19,816.71, 27,346.21 and 11,863.32 is: 16,370.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,816.71 : 27,346.21 = 11,863.32 : x
  2. Step 2: Convert to fraction form
    19,816.71/27,346.21 = 11,863.32/x
  3. Step 3: Cross multiply
    19,816.71x = 27,346.21 × 11,863.32
  4. Step 4: Simplify right side
    19,816.71x = 324,416,840.02
  5. Step 5: Solve for x
    x = 324,416,840.02/19,816.71
  6. Step 6: Final answer
    x = 16,370.87

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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.