Home / 15,091.09-20,825.41-8,376.80

Finding the Fourth Proportional to 15,091.09, 20,825.41 and 8,376.80

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Solution

The fourth proportional to 15,091.09, 20,825.41 and 8,376.80 is: 11,559.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,091.09 : 20,825.41 = 8,376.80 : x
  2. Step 2: Convert to fraction form
    15,091.09/20,825.41 = 8,376.80/x
  3. Step 3: Cross multiply
    15,091.09x = 20,825.41 × 8,376.80
  4. Step 4: Simplify right side
    15,091.09x = 174,450,252.60
  5. Step 5: Solve for x
    x = 174,450,252.60/15,091.09
  6. Step 6: Final answer
    x = 11,559.82

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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.