Home / 16,868.20-25,281.78-11,939.26

Finding the Fourth Proportional to 16,868.20, 25,281.78 and 11,939.26

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Solution

The fourth proportional to 16,868.20, 25,281.78 and 11,939.26 is: 17,894.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,868.20 : 25,281.78 = 11,939.26 : x
  2. Step 2: Convert to fraction form
    16,868.20/25,281.78 = 11,939.26/x
  3. Step 3: Cross multiply
    16,868.20x = 25,281.78 × 11,939.26
  4. Step 4: Simplify right side
    16,868.20x = 301,845,744.68
  5. Step 5: Solve for x
    x = 301,845,744.68/16,868.20
  6. Step 6: Final answer
    x = 17,894.37

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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.