Home / 18,866.40-26,040.24-11,416.80

Finding the Fourth Proportional to 18,866.40, 26,040.24 and 11,416.80

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Solution

The fourth proportional to 18,866.40, 26,040.24 and 11,416.80 is: 15,757.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.40 : 26,040.24 = 11,416.80 : x
  2. Step 2: Convert to fraction form
    18,866.40/26,040.24 = 11,416.80/x
  3. Step 3: Cross multiply
    18,866.40x = 26,040.24 × 11,416.80
  4. Step 4: Simplify right side
    18,866.40x = 297,296,212.03
  5. Step 5: Solve for x
    x = 297,296,212.03/18,866.40
  6. Step 6: Final answer
    x = 15,757.97

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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.