Home / 15,194.38-20,969.67-8,480.62

Finding the Fourth Proportional to 15,194.38, 20,969.67 and 8,480.62

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Solution

The fourth proportional to 15,194.38, 20,969.67 and 8,480.62 is: 11,704.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,194.38 : 20,969.67 = 8,480.62 : x
  2. Step 2: Convert to fraction form
    15,194.38/20,969.67 = 8,480.62/x
  3. Step 3: Cross multiply
    15,194.38x = 20,969.67 × 8,480.62
  4. Step 4: Simplify right side
    15,194.38x = 177,835,802.80
  5. Step 5: Solve for x
    x = 177,835,802.80/15,194.38
  6. Step 6: Final answer
    x = 11,704.05

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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.