Home / 15,169.09-22,745.07-6,279.40

Finding the Fourth Proportional to 15,169.09, 22,745.07 and 6,279.40

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Solution

The fourth proportional to 15,169.09, 22,745.07 and 6,279.40 is: 9,415.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,169.09 : 22,745.07 = 6,279.40 : x
  2. Step 2: Convert to fraction form
    15,169.09/22,745.07 = 6,279.40/x
  3. Step 3: Cross multiply
    15,169.09x = 22,745.07 × 6,279.40
  4. Step 4: Simplify right side
    15,169.09x = 142,825,392.56
  5. Step 5: Solve for x
    x = 142,825,392.56/15,169.09
  6. Step 6: Final answer
    x = 9,415.55

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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.