Home / 13,249.71-19,873.96-3,889.35

Finding the Fourth Proportional to 13,249.71, 19,873.96 and 3,889.35

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Solution

The fourth proportional to 13,249.71, 19,873.96 and 3,889.35 is: 5,833.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.71 : 19,873.96 = 3,889.35 : x
  2. Step 2: Convert to fraction form
    13,249.71/19,873.96 = 3,889.35/x
  3. Step 3: Cross multiply
    13,249.71x = 19,873.96 × 3,889.35
  4. Step 4: Simplify right side
    13,249.71x = 77,296,776.60
  5. Step 5: Solve for x
    x = 77,296,776.60/13,249.71
  6. Step 6: Final answer
    x = 5,833.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.