Home / 9,709.44-13,397.76-5,517.60

Finding the Fourth Proportional to 9,709.44, 13,397.76 and 5,517.60

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Solution

The fourth proportional to 9,709.44, 13,397.76 and 5,517.60 is: 7,613.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,709.44 : 13,397.76 = 5,517.60 : x
  2. Step 2: Convert to fraction form
    9,709.44/13,397.76 = 5,517.60/x
  3. Step 3: Cross multiply
    9,709.44x = 13,397.76 × 5,517.60
  4. Step 4: Simplify right side
    9,709.44x = 73,923,480.58
  5. Step 5: Solve for x
    x = 73,923,480.58/9,709.44
  6. Step 6: Final answer
    x = 7,613.57

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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.