Home / 18,739.59-25,856.11-11,661

Finding the Fourth Proportional to 18,739.59, 25,856.11 and 11,661

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Solution

The fourth proportional to 18,739.59, 25,856.11 and 11,661 is: 16,089.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.59 : 25,856.11 = 11,661 : x
  2. Step 2: Convert to fraction form
    18,739.59/25,856.11 = 11,661/x
  3. Step 3: Cross multiply
    18,739.59x = 25,856.11 × 11,661
  4. Step 4: Simplify right side
    18,739.59x = 301,508,098.71
  5. Step 5: Solve for x
    x = 301,508,098.71/18,739.59
  6. Step 6: Final answer
    x = 16,089.36

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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.