Home / 11,164.20-15,409.05-8,736.76

Finding the Fourth Proportional to 11,164.20, 15,409.05 and 8,736.76

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Solution

The fourth proportional to 11,164.20, 15,409.05 and 8,736.76 is: 12,058.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,164.20 : 15,409.05 = 8,736.76 : x
  2. Step 2: Convert to fraction form
    11,164.20/15,409.05 = 8,736.76/x
  3. Step 3: Cross multiply
    11,164.20x = 15,409.05 × 8,736.76
  4. Step 4: Simplify right side
    11,164.20x = 134,625,171.68
  5. Step 5: Solve for x
    x = 134,625,171.68/11,164.20
  6. Step 6: Final answer
    x = 12,058.65

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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.