Home / 15,091.44-20,826.24-8,376.60

Finding the Fourth Proportional to 15,091.44, 20,826.24 and 8,376.60

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Solution

The fourth proportional to 15,091.44, 20,826.24 and 8,376.60 is: 11,559.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,091.44 : 20,826.24 = 8,376.60 : x
  2. Step 2: Convert to fraction form
    15,091.44/20,826.24 = 8,376.60/x
  3. Step 3: Cross multiply
    15,091.44x = 20,826.24 × 8,376.60
  4. Step 4: Simplify right side
    15,091.44x = 174,453,081.98
  5. Step 5: Solve for x
    x = 174,453,081.98/15,091.44
  6. Step 6: Final answer
    x = 11,559.74

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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.