Home / 25,976.09-38,961.41-9,108.86

Finding the Fourth Proportional to 25,976.09, 38,961.41 and 9,108.86

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Solution

The fourth proportional to 25,976.09, 38,961.41 and 9,108.86 is: 13,662.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,976.09 : 38,961.41 = 9,108.86 : x
  2. Step 2: Convert to fraction form
    25,976.09/38,961.41 = 9,108.86/x
  3. Step 3: Cross multiply
    25,976.09x = 38,961.41 × 9,108.86
  4. Step 4: Simplify right side
    25,976.09x = 354,893,788.74
  5. Step 5: Solve for x
    x = 354,893,788.74/25,976.09
  6. Step 6: Final answer
    x = 13,662.32

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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.